2009 IEEE International Vacuum Electronics Conference 28‒30 April 2009 Angelicum, Pontifical University of Saint Thomas Aquinas Rome, Italy IVEC 2009 ROME Conference Programme www.ivec2009.org Welcome On behalf of the Program Committee and the EDS Technical Committee on Vacuum Devices, it is my great pleasure to welcome you to the 10th IEEE International Vacuum Electronics Conference, IVEC 2009. The leading conference in the field of vacuum electronics returns to Europe, this time to the magnificent city of Rome, to celebrate its tenth anniversary. Sponsored by the European Space Agency, with technical co‐sponsorship of IEEE Electron Devices Society (EDS) and the support of the University of Rome Tor Vergata, the meeting is being held at the Angelicum, Pontifical University of Saint Thomas Aquinas. The three‐day proceedings start on Tuesday, 28 April, with the customary plenary sessions presented by several renowned experts in the field covering varied subjects of great interest to the community. Over the course of the following two and a half days, a total of 251 papers will be presented, organized in 24 oral sessions, totalling 120 papers, and 8 poster sessions. There will also be time for the presentation of the IVEC Award for Excellence in Vacuum Electronics, at the end of the plenary session, and Best Student Paper Award, during the conference dinner. The conference banquet dinner is scheduled for Wednesday evening at 20:00 at Castel SantʹAngelo. Immersed in the unique atmosphere of this wonderful historical building, attendees will be able to enjoy a spectacular panoramic view over Rome and savour traditional delicacies of the Italian gastronomy. This gathering has been arranged to encourage the presentation and discussion of interesting and useful topics to users, manufacturers, academics, and students alike. I hope you will have a rewarding technical and personal experience, and use this opportunity to meet old friends and colleagues and to make new acquaintances, also during the many interesting social events that have been programmed. More information about the conference can be found on the website (http://www.ivec2009.org), which will also be updated with additional IVEC‐related information after the end of the conference. I would like to take this opportunity to acknowledge the invaluable help I received from all the Committee Members in setting up the Conference Programme, Richard Carter and the Best Student Paper Selection Panel for their commitment, and Claudio Paoloni for his great dedication and support with the local organization. Last but not least, I would like to thank all people who will present and contribute in some way, without your participation the Conference would not be possible. Marinella Aloisio General & Technical Programme Chair IVEC 2009 Committees IVEC 2009 Technical Programme Committee Marinella Aloisio (General/Technical Programme Chair) European Space Agency ESA-ESTEC, The Netherlands Claudio Paoloni (Local Organization Chair) Università di Roma Tor Vergata, Italy Ernst Bosch Thales Electron Devices, Germany Richard Carter University of Lancaster, UK Stefan Choroba Deutsches Elektronen-Synchroton, Germany Mike Clark TMD Technologies Ltd, UK Massimo Comparini Thales Alenia Space, Italy Aldo Di Carlo Università di Roma Tor Vergata, Italy Matthias Gollor European Space Agency ESA-ESTEC, The Netherlands Anatoly V. Galdetskiy SRPC "ISTOK", Russia Gian Piero Gallerano ENEA, Italy Karl- Heinz Huebner TESAT Spacecom, Germany Erk Jensen CERN, Switzerland Marco Lisi Telespazio, Italy Konstantin Lukin National Academy of Sciences of Ukraine / Usikov Institute for Radiophysics and Electronics, Ukraine Jean Maynard Thales Alenia Space, France Rosario Martorana Selex Galileo, Italy Ian Milsom E2V Technologies, UK Francesco Mirizzi Associazione Euratom-ENEA sulla Fusione, Italy Mark Nightingale Culham Science Centre, UK Michael Petelin Russian Academy of Science-IAP, Russia Lino Russo Space Engineering, Italy Jacques Sombrin Centre National d'Etudes Spatiales (CNES), France Francesco Svelto Agenzia Spaziale Italiana (ASI), Italy Philippe Thouvenin Thales Electron Devices, France Manfred Thumm Forschungszentrum Karlsruhe/Universität Karlsruhe, Germany Minh Quang Tran Centre de Recherches en Physique des Plasmas / Ecole Polytechnique Federale de Lausanne, Switzerland Mauro Varasi Finmeccanica S.p.A, Italy Siegfried Voigt Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Germany IEEE EDS Vacuum Electronics Committee Dan Goebel (Chairman) NASA Jet Propulsion Laboratory, USA Marinella Aloisio European Space Agency, The Netherlands John Booske University of Wisconsin, USA Ernst Bosch Thales Electron Devices, Germany Richard Carter University of Lancaster, UK George Caryotakis Stanford Linear Accelerator Center, USA Takao Kageyama Kitakyushu Foundation for Adv. Ind. Sci. & Tech., Japan Carol Kory Calabazas Creek Research/ TeraPhysics, USA Lalit Kumar Microwave Tube Research & Development Centre, India Baruch Levush Naval Research Laboratory, USA Fu-Jiang Liao Beijing Vacuum Electronics Research Institute, China Konstantin Lukin National Academy of Sciences of Ukraine, Ukraine William Menninger L-3 Communications ETI, USA Gun-Sik Park Seoul National University, Korea Michael Petelin Russian Academy of Science-IAP, Russia Charles Spindt SRI International, USA Armand Staprans Communications and Power Industries, USA Philippe Thouvenin Thales Electron Devices, France Manfred Thumm Forschungszentrum Karlsruhe & University of Karlsruhe, DE Richard True L-3 Communications EDD, USA Jenq-Daw Wang Chung-Shan Institute of Science and Technology, Taiwan IVEC 2009 Sponsored and organised by the European Space Agency Technical Co‐sponsorship of the IEEE Electron Devices Society With the organisation support of the University of Rome Tor Vergata Co‐Sponsors Patronage Exhibitors Programme at a Glance Monday, 27 April 14:00 – 18:00 18:00 – 19:30 Seminar: CST Studio Suite & Particle Studio Welcome cocktail at Angelicum On-site Registration Tuesday, 28 April 07:30 – 08:30 08:30 – 08:40 08:40 – 10:40 10:40 – 11:00 On-site Registration Welcome and Introductory remarks (Aula Magna) Plenary Session Coffee break 11:00 – 12:00 Plenary Session 12:00 – 12:20 12:20 – 14:00 Awards Ceremony Lunch 14:00 – 15:40 Session 3 (Aula Magna) – High Power Microwave Devices 15:40 – 16:00 16:00 – 18:00 Session 5 (Aula Minor) – TWTs 1 Session 7 (Aula 11) – Field Emission 1 Coffee break Session 4 (Aula Magna) – Gyro-devices 1 19:00 – 21:00 Session 6 (Aula Minor) – THz Session 8 (Aula 11) – Design and Modelling Private Visit to Vatican Museums Wednesday, 29 April 8:30 – 9:50 Session 9 (Aula Magna) – TWTs 2 9:50 – 10:10 Coffee break 10:10 – 12:10 Session 10 (Aula Magna) – Space Systems and SubSystems 12:10 – 13:40 13:40 – 15:20 20:00 Poster Session 2 Poster Session 4 Lunch Session 11 (Aula Magna) – Applications 15:20 – 15:40 15:40 – 17:40 Poster Session 3 Poster Session 1 Session 13 (Aula Minor) – Cathodes 1 Session 15 (Aula 11) – Sheet Beam Devices Coffee break Session 12 (Aula Magna) – Space Applications Session 14 (Aula Minor) – Field Emission 2 Session 16 (Aula 11) – Klystron 1 Conference dinner at Castel Sant'Angelo Thursday, 30 April 8:30 – 9:50 Session 17 (Aula Magna) – Systems, Sub-systems and Components 9:50 – 10:10 Coffee break 10:10 – 11:50 Session 18 (Aula Magna) – IOTs 11:50 – 13:20 13:20 – 15:00 17:20 – 17:30 Poster Session 6 (Sala Colonne) Poster Session 8 (Sala Colonne) Lunch Session 19 (Aula Magna) – Modelling 15:00 – 15:15 15:15 – 17:15 Poster Session 7 (Sala Colonne) Poster Session 5 (Sala Colonne) Session 21 (Aula Minor) – Gyro-devices 2 Session 23 (Aula 11) – Cathodes 2 Coffee break Session 20 (Aula Magna) – Klystron 2 Session 22 (Aula Minor) – FELs, Magnetrons and Novel Devices Closing remarks (Aula Magna) Session 24 (Aula 11) – Technology: Guns, Cathodes and Materials IVEC 2009 Programme Monday, 27 April 2009 14:00-18:00 Seminar: CST Studio Suite and CST Particle Studio 14:00-19:30 Registration 18:00-19:30 Welcome Cocktail at Angelicum Tuesday, 28 April 2009 07:30-08:30 Registration 08:30-08:40 Welcome and Introductory Remarks Aula Magna Plenary Session - Aula Magna 08:40 History, Present Status and Future of Gyrotrons Thumm, M. Forschungszentrum Karlsruhe (Germany) 09:10 Applying Microfabrication to Helical Vacuum Electron Devices for THz Applications Dayton, J. 1; Kory, C. 1; Mearini, G. 1; Malta, D. 2; Lueck, M. 2; Gilchrist, K. 2 1 Teraphysics Corp. (United States); 2RTI, Int. (United States) 09:40 Vacuum Electronics Applications at CERN Jensen, E. CERN (Switzerland) 10:10 Research and Development of Multi-Beam Klystrons in China Ding, Y. ; Liu, P.; Zhan, Z.; Wang, Y. Chinese Academy of Sciences (China) 10:40-11:00 Coffee Break 11:00 TWT's in Space - Present Status and Future Applications Voigt, S. DLR (Germany) 11:30 Vacuum Microwave Integrated Circuits for Radar RF Front-End Lukin, K. 1; Park, G. 2 1 IRE NASU (Ukraine); 2Seoul National University (Korea, Republic of) 12:00-12:20 Ceremony: IVEC Award for Excellence in Vacuum Electronics 12:20-14:00 Lunch Break Session 3 - High Power Microwave Devices – Aula Magna Chair: G.P. Gallerano, Enea, Italy 14:00 Cyclotron Protective Device with Increased Frequency Band Budzinskiy, Y.; Bykovskiy, S. FSUE RPC "Istok" (Russian Federation) 14:20 Waveguide System for High-Power Microwave Pulse Compression McStravick, M. 1; Cross, A.W. 1; He, W. 1; Ronald, K. 1; Whyte, C.G 1; Phelps, A.D.R. 1; Konoplev, I.V. 1; MCInnes, P. 1; Young, A.R. 1; Samsonov, S.V. 2; Mishakin, S.V. 2; Denisov, G.G. 2; Bratman, V.L. 2; Kolganov, N.G. 2 1 University of Strathclyde (United Kingdom); 2Institute of Applied Physics, Russian Academy of Sciences (Russian Federation) 14:40 Experimental Study on Hundreds of MW at X-band for Relativistic Backward Wave Oscillator (RBWO) Min, S.H. 1; Jung, H.C. 1; Park, G.S. 1; An, J.H. 2; Lee, S.H.2; Yoon, Y.J. 2; Kim, J.Y. 3; Choi, J.H. 3; So, J.H. 3 1 Seoul National University (Korea, Republic of); 2Yonsei University (Korea, Republic of); 3Agency for Defense Development (Korea, Republic of) 15:00 Double-Gap Vircator Operation at Sub-Microsecond Pulse Duration Shlapakovski, A. 1; Kweller, T. 1; Hadas, Y. 1; Krasik, Ya. E. 1; Polevin, S. 2; Kurkan, I. 2 1 Technion-Israel Institute of Technology (Israel); 2Institute of High-Current Electronics (Russian Federation) 15:20 Recent Progress on Relativistic Magnetrons Gilgenbach, R.M. ; Franzi, M. ; Hoff, B.W. ; Jordan, N. ; Lau, Y.Y. University of Michigan (United States) 15:40-16:00 Coffee Break Session 5 - TWTs I – Aula Minor Chair: P. Thouvenin, Thales Electron Devices, France 14:00 New 500W Ka band TWT’s Jarno, J.F.; Bosch, E.; Christ, R.; Lefèvre, M.; Racamier, J.C.; Rupp, H.; Tribout, J. Thales (France) 14:20 High-Efficiency, Qualification-Tested, 50 - 130 W K-band Traveling-Wave Tubes for Satellite Communications Downlinks Menninger, W.L.; Aldana-Gutierrez, S.; Benton, R.T.; Zhai, X.; Zamora, D.; McGeary, W.L. L-3 Communications Electron Technologies, Inc. (United States) 14:40 Development of Tri-band Helix TWT for Telecommunications using “Semi-metallic Rods” Structure Martorana, R.; Nicosia, A. Selex Galileo (Italy) 15:00 500 W Ka-Band Helix-TWT: Transition from Development to Production Chong, C.K.; Forster, J.W.; Ramay, M.L.; Sneary, S.K.; Tamashiro, R.N.; Zhai, X. L-3 Electron Technologies, Inc. (United States) 15:20 Space Ka-Band Traveling Wave Tubes - Trend Data of a Sucessful and Eαfficient Production Beillevaire, F.1; Célérier, N.1; Wohland, R 2 ; Bosch, E.2; 1 Thales Electron Devices (France); 2Thales Elctron Devices (Germany) 15:40-16:00 Coffee Break Session 7 - Field Emission I – Aula 11 Chair: A. Galdetskiy, FSUE “Istok”, Russia 14:00 Carbon Nanotube Based Cathodes for Microwave Amplifiers (Keynote Presenation) Legagneux, P.1; Le Sech, N.1; Guiset, P.1; Gangloff, L. 1; Cojocaru, C. 2; Schnell, J.P. 1; Pribat, D. 2; Teo, K.B.K.3; Robertson, J. 3; Milne, W.I. 3; André, F. 4; Rozier, Y 4; Dieumegard, D. 4 1 Thales Research & Technology (France); 2Ecole Polytechnique (France); 3University of Cambridge (United Kingdom); 4Thales Electron Devices (France) 14:20 Effect of Evaporation on the Field Emission of a Carbon Nanotube Cathode Cui, Y. ; Zhang, X. ; Lei, W. ; Di, Y. ; Wang, J. ; Xiao, M.; Yang, X.; Wang, T. School of Electronic Science & Engineering (China) 14:40 Improved Focus Performance of Triode Structure ZnO-FED with a Metal Grid Di, Y. 1; Lei, W. 1; Zhang, X. 1; Pan, L. 2; Lu, R. 2; Min, C. 2 1 School of Electronic Science & Engineering (China); 2School of Physics (China) 15:00 Novel Geometry of Carbon Nanotube Field Emitter to Achieve High Current Densities for Terahertz Sources Silan, J. 1; Niemann, D. 1; Ribaya, B. 1; Rahman, M. 2; Meyyappan, M. 3; Nguyen, C. 4 1 NASA Ames Research Center, Santa Clara University (United States); 2Santa Clara University (United States); 3NASA Ames Research Center (United States); 4ELORET Corporation (United States) 15:20 MEMS Templating Technique for Miniaturization of Carbon Nanotube Field Emission Guns Ribaya, B.P. 1; Niemann, D.L. 1; Rahman, M. 2; Blake, D.F. 3; Nguyen, C.V. 4 1 Santa Clara University / NASA Ames Research Center (United States); 2Santa Clara University (United States); 3 NASA Ames Research Center (United States); 4ELORET Corporation / NASA Ames Research Center (United States) 15:40-16:00 Coffee Break Session 4 - Gyro-Devices I – Aula Magna Chair: M. Thumm, Research Center Karlsruhe, Germany 16:00 Space Charge Oscillations in Gyrotron Magnetron-Injection Guns with High Pitch-Factor (Keynote Presenation) Manuilov, V. Nizhny Novgorod State University (Russian Federation) 16:20 Design of a Permanent Magnet Gyrotron for Active Denial Systems Neilson, J. ; Read, M. ; Ives, R.L. Calabazas Creek Research (United States) 16:40 Design of Interaction Cavity for 42 GHz, 200 kW CW/Long Pulse Gyrotron Khatun, H. ; Singh, U. ; Kumar, N. ; Bera, A. ; Rao, R.R. ; Sinha, A.K. CEERI (India) 17:00 Design Study of Magnetron Injection Guns for a 4 MW 170 GHz Coaxial Gyrotron Rode, J.C. 1; Beringer, M.H. 1; Illy, S. 1; Kern, S. 1; Piosczyk, B.1; Thumm, M. 2 1 Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM), Forschungszentrum Karlsruhe (FZK) (Germany); 2Institut für Höchstfrequenztechnik und Elektronik, Uni. KA (TH); Institut für Hochleistungsimpuls- u (Germany) 17:20 Optimization of Magnetic Field for Maximum Output Power of a 42 GHz CW/Long Pulse Gyrotron Khatun, H.; Rao, R.R. ; Sinha, A.K.; Joshi, S.N. Central Electronics Enigineering Research Institute (CEERI,CSIR) (India) Session 6 – THz – Aula Minor Chair: J. Booske, University of Wisconsin, USA 16:00 The European Project OPTHER for the Development of a THz Tube Amplifier (Keynote Presenation) Di Carlo, A. 1; Paoloni, C. 1; Brunetti, F. 1; Terranova, M.L. 1; Durand, A. 2; Marchesin, R. 2; Pham, K. 2; Krozer, V. 3; Fiorello, A. 4; Dispenza, M. 4; Pribat, D. 5; Megtert, S. 5; Schnell, J.P. 6; Guiset, P. 6; Legagneux, P. 6; Dolfi, D. 6; De Rossi, A. 6 1 University of Rome Tor Vergata (Italy); 2Thales Components & Subsystems (France); 3Technical University of Denmark (Denmark); 4SELEX-SI (Italy); 5Ecole Polytechnique/CNRS (France); 6Thales Research and Technology (France) 16:20 100GHz LIGA-fabricated Coupled-Cavity Device Srivastava, A. 1; So, J.K. 1; Sattorov, M. 1; Kwon, O.J. 1; Park, G.-S. 1; Baik, C.W. 2; Kim, J.H. 3; Chang, S.S. 3 1 Seoul National University (Korea, Republic of); 2Samsung Advanced Institute of Technology (Korea, Republic of); 3Pohang Accelerator Laboratory (Korea, Republic of) 16:40 Design Study of Corrugated Waveguide SlowWave Structure for THz Amplification Mineo, M.; Paoloni, C. Università di Roma “Tor Vergata” (Italy) 17:00 Experimental, Numerical and Analytical Studies of the Staggered Double Vane Structure for THz Application Shin, Y.M. ; Barnett, L.R. ; Luhmann Jr., N.C. University of California, Davis (UCD) (United States) 17:20 220 GHz Folded Waveguide Circuits for High Power Amplifiers Tucek, J. ; Basten, M. ; Gallagher, D. ; Kreischer, K. Northrop Grumman (United States) 17:40 A Multiple Electron Beam Array for a 220 GHz Amplifier Basten, M. 1; Tucek, J. 1; Gallagher, D. 1; Kreischer, K. 1; Liu, J. 2; Ives, L. 3; Manohara, H. 4 1 Northrop Grumman (United States); 2Electron Energy Corporation (United States); 3Calabazas Creek Research (United States); 4Jet Propulsion Laboratory (United States) Session 8 - Design and Modelling – Aula 11 Chair: R. Carter, Lancaster University, UK 16:00 Evolutionary Algorithms and High Efficiency Multiple Beam Klystron (MBK) Design Lingwood, C.; Carter, R.G.; Gunn, K. Lancaster University (United Kingdom) 16:20 Analysis of Thermal Interface Resistivity of a Helix TWT Slow-Wave Structure Han, Y. ; Liu, Y.W. ; Ding, Y.G. ; Liu, P.K. Institute of Electronics, Chinese Academy of Sciences (China) 16:40 Time-Domain Modeling of Emission-Gated Electron Guns Wilsen, C. ; Kowalczyk, R. ; Kirshner, M. ; Boyle, M. L-3 Communications EDD (United States) 17:00 Modeling and Design of High-Power Single-Beam and Multiple-Beam Inductive Output Tubes Wright, E. 2; Nguyen, K. 2; Pasour, J. 1; Cooke, S. 1; Levush, B. 1; Petillo, J. 3; Chernyavskiy, I 3; DeFord, J. 4; Held, B. 4; Cusick, M. 5 1 Naval Research Laboratory (United States); 2Beam Wave Research, Inc. (United States); 3SAIC (United States); 4Simulation Technology and Applied Research, Inc. (United States); 5CPI (United States) 17:20 Design of Asymmetrical Electron Beam Devices Using Computer Optimization Ives, L. 1; Bui, T. 1; Read, M. 1; Attarian, A. 2; Tallis, W. 2; Tran, H. 2; Posth, M. 3 1 Calabazas Creek Research, Inc. (United States); 2North Carolina State University (United States); 3 Consultant (United States) 17:40 TESLA Modeling of the Linear-Beam Amplifiers Chernyavskiy, I.A. 1; Vlasov, A.N. 2; Cooke, S.J. 2; Abe, D.K. 2; Levush, B. 2; Antonsen, T.M. 3; Pershing, D.E. 4; Wright, E.L. 4; Ngyuen, K.T. 4 1 SAIC (United States); 2Naval Research Laboratory (United States); 3University of Maryland (United States); 4 Beam-Wave Research, Inc. (United States) 19:00-21:00 Private Visit to Vatican Museums Wednesday, 29 April 2009 Session 9 - TWTs II – Aula Magna Chair: E. Bosch, Thales Electron Devices GmbH, Germany 08:30 Development of DBS band 750W TWT Nemoto, A. ; Soga, K. ; Yoshida, M. ; Tsutaki, K. NEC Microwave Tube, Ltd. (Japan) 08:50 95 GHz Helical TWT Design Kory, C. 1; Dayton, Jr., J. 1; Mearini, G. 1; Malta, D. 2; Lueck, M. 2; Gilchrist, K. 2; Vancil, B. 3 1 Teraphysics Corporation (United States); 2RTI International (United States); 3Ebeam Incorporated (United States) 09:10 Design of an Overmoded W-band TWT Comfoltey, E.N. ; Shapiro, M.A.; Sirigiri, J. ; Temkin, R.J. MIT (United States) 09:30 High Average Power W-band TWT Development Theiss, A. ; Meadows, C. ; Freeman, R. ; True, R. ; Martin, M. ; Montgomery, K. L-3 Communications (United States) 09:50-10:10 Coffee Break Poster Session I – Sala Colonne 08:30 - 10:10 Particle-in-Cell Simulation of Helix Traveling-Wave Tube Zhu, Z.; Jia, B.; Wan, D.; Ding, S. University of Electronic Science and Technology of China (China) ................................................................................. P 1.1 The Study of Dispersion Shaping and Harmonic Suppression in Helix TWT Zhu, Z.; Jia, B.; Wan, D.; Ding, S. University of Electronic Science and Technology of China (China) ................................................................................. P 1.2 Design and 3-D Simulation of Microfabricated Folded Waveguide for a 220GHz Broadband Traveling-Wave Tube Application Zheng, R. ; Chen, X. Vestfold University College (Norway) ................................................................................................................................ P 1.3 Influence of Variations of the Electrodynamics Performances under the Attenuator on Parameters of Helix TWT Danilov, A.B. ; Il'ina, E.M. ; Rafalovich, A.D. The Federal State Unitary Enterprise NPP “Almaz” (Russian Federation) ..................................................................... P 1.4 Superradiance Mechanism in the Sectionalized Relativistic BWO and TWT Kurayev, A.A. ; Sinitsyn, A.K. Belarusian State University of Informatics and Radioelectronics (Belarus) ..................................................................... P 1.5 Improving the Linearity and Output Power of a Ku-band TWT by Optimizing Electron Beam Radius and Helix Stucture Li, L.; Feng, J. Vacuum Electronics National Lab, (China)......................................................................................................................... P 1.6 Calculation of Reflection Factor H0i - Waves of a Round Waveguide from a Dielectric Window with a Compensating Groove Naranovich, O.I. ; Sinitsyn, A.K. Belarusian State University of Informatics and Radioelectronics (Belarus) ...................................................................... P1.7 A Self-Consistent Potential Formalism in the Electrodynamics Gritsunov, A. Knure (Ukraine) ................................................................................................................................................................... P 1.8 Analysis of the Beam-Loading Conductance in Three-gap Coupled Cavity Ma, J. 1,2; Wang, Y. 1 ; Wang, S.Z. 1; Quan, Y. 1,2 , Han, H. 1,2 1 Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences (China); 2Graduate University of Chinese Academy of Sciences (China) .......................................................... P 1.9 Investigation of Conductivity Loss in a Helix Slow-Wave Structure due to the Backward-Wave Space-Harmonic Propagation Mode Datta, S.K. 1; Kumar, L. 1; Basu, B.N. 2 1 Microwave Tube R&D Centre (India); 2College of Engineering and Technology (India) ............................................ P 1.10 CTHelixLS: A Novel Tool for the Cold Test and Large Signal Analysis of Helix SWS Coco, S. 1;Laudani, A. 1; Pollicino, G. 1; Tirrò, P. 1; Martorana, R. 2 1 University of Catania (Italy); 2Selex Galileo (Italy) ....................................................................................................... P 1.11 Design of a Gridded Electron Gun for Traveling-Wave Tubes: an EGUN Case Study Xavier, C.C. 1; Motta, C.C. 2 1 Instituto de Pesquisas Energeticas e Nucleares (Brazil); 2University of Sao Paulo (Brazil) ....................................... P 1.12 Modeling of Coupled Cavity TWT with TESLA Vlasov, A.N. 1; Cooke, S.J. 1; Levush, B. 1; Antonsen, Jr., T.M. 2; Chernyavskiy, I.A. 3; Chernin, D. 3 1 Naval Research Laboratory (United States); 2University of Maryland (United States); 3Science Applications International Corporation (United States) ....................................................................................................................... P 1.13 Design of a Microfabricated TunneLadder Slow-Wave Structure for a 50 GHz Millimeter Traveling-Wave Tube Song, H. 1; Lee, J. 1; Lin, M.C. 2; Smithe, D.N. 2; Stoltz, P.H. 2 1 University of Colorado (United States); 2Tech-X Co. (United States) ........................................................................... P 1.14 Helix TWT Yield Improvement by Helix Pitch Optimization Mineo, M.; Paoloni, C. University of Roma Tor Vergata (Italy) ............................................................................................................................ P 1.15 1D Large Signal Lagrangian Model for a 200W Ku-Band TWT Lopes, D. 1 ; Motta, C. 2 1 Nuclear and Energetic Research Institute - IPEN (Brazil); 2University of Sao Paulo - USP (Brazil) .......................... P 1.16 Comparison of Metals in their Steadiness to Pulse-Periodic Microwave Heating Fatigue Petelin, M. 1; Fix, A. 2 1 Institute of Applied Physics RAS (Russian Federation); 2Institute of Applied Physics (Russian Federation) .............. P 1.17 09:50-10:10 Coffee Break Poster Session III – Sala Colonne 08:30 - 10:10 Spurious-Mode-Suppressing Method in Cylindrical Resonator for High Peak Power Multi-Beam Klystron Han, H.P. 1,2 ; Wang, Y. 1; Zhang, R. 1,2; Ruan, W. 1,2 ; Ma, J. 1,2 ; Han, Y. 1,2 1 Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences (China); 2 Graduate University of Chinese Academy of Sciences (China).......................................................... P 3.1 Design and Fabrication of Pole-Controlled Electron Gun in PPM Li , S.; Zhao, G. Institute of Electronics, Chinese Academy of Science (China) ........................................................................................... P 3.2 Defect Modes in Two-Dimensional Parallelogram Lattice Photonic Crystals Qi, L.1 ; Yang, Z. 1; Lu. F. 2 1 Institute of High Energy Electronics, University of Electronic Science and Technology of China (China); 2Group of physics, Senior High School of Fengcheng (China) ............................................................................................................ P 3.3 PTG1181 Electron Gun Development Abstract Phillips, G. ; Gates, R. TMD Technologies Ltd (United Kingdom) ......................................................................................................................... P 3.4 Amplification Factor in IOTs with Island Building Crane, S. ; Carter, R.; Burt, G. Lancaster University (United Kingdom) ............................................................................................................................. P 3.5 Effects of Annealing on Microstructure of Osmium-Ruthenium Thin Films Li, W.-C. 1 ; Roberts, S. 2; Balk, T.J. 1 1 University of Kentucky (United States); 2Semicon Associates (United States) ................................................................. P 3.6 Thermal Management: Effect of Heater Geometry on Dispenser Cathode Temperature Busbaher, D. Semicon Associates (United States) ..................................................................................................................................... P 3.7 Design and Test of a 90 kV, Low Emittance, Gridded Gun Read, M. ; Ives, R.L. ; Marsden, D. ; Collins, G. Calabazas Creek Research Inc. (United States) .................................................................................................................. P 3.8 High Dielectric Nanocrystalline Materials on Carbon Nanotubes for Vacuum Electronics Terranova, M.L. 1; Orlanducci, S. 1; Tamburri, E. 1; Toschi, F. 1; Guglielmotti, V. 1; Sessa, V. 1; Rossi, M. 2 1 Università di Roma “Tor Vergata” (Italy); 2Università di Roma “Sapienza” (Italy)........................................................ P 3.9 Dual Anode Electron Gun & PPM Focusing for Ka-Band TWT Sharma, R.K.S.; Choudhury, A.R.; Sharma, S.M.; Arya, S.; Bera, A.; Srivastava, V. ..................................................... P 3.10 CEERI, Pilani (India) Cathode Manufacturing: Relational Data Collection and Process Control Systems Effgen, M. Semicon Associates (United States) ................................................................................................................................... P 3.11 A Novel Nanocomposite Scandia-tungsten Coated Dispenser Cathode Wang, P.; Li, J. Beijing Vacuum Electronics Research Institute (China) ................................................................................................... P 3.12 Carbon Nanotube Based Photocathodes for High Frequency Amplifiers Le Sech, N. 1, Hudanski, L. 1, Minoux, E. 1, Gangloff, L. 1, Schnell, J.-P. 1, Caillard, A. 1, Cojocaru, C.S. 1, Teo, K.B.K.2, Robertson, J. 2, Milne, W.I. 2, Châtelet, M. 1, Pribat, D. 1 ; Legagneux, P. 1 1 Nanocarb Laboratory, Thales - Ecole Polytechnique (France); 2Electrical Engineering Division, University of Cambridge (United Kingdom)............................................................................................................................................ P 3.13 Ba/BaO Evaporation Measurement During Accelerated Life Test Wang, T. 1; Zhang, X. 1; Xiao, M. 1; Wang, J. 1; Gaertner, G. 2; Lei, W. 1; Huang, C. 3 1 School of Electronic Science and Engineering (China); 2Philips Research Laboratories (Germany); 3GuoGuang Electric Co, Ltd (China) ..................................................................................................................................................... P 3.14 Field Emission Property Improved by ZnO Acicular Nanostructure through Chemical Bath Deposition Chen, J. ; Lei, W. ; Zhang, X.B. School of Electronic Science and Engineering (China) .................................................................................................... P 3.15 Measurement and Analysis of Advanced Field Emitting Cold Cathodes Sule, N. ; Scharer, J. ; Booske, J. ; Sengele, S. ; Vlahos, V. University of Wisconsin, Madison (United States) ............................................................................................................ P 3.16 09:50-10:10 Coffee Break Session 10 - Space Systems and Sub-Systems – Aula Magna Chair: J. Puech, CNES, France 10:10 Multiport Amplifiers for Satellite Applications: Historical Perspectives and Future Directions Aloisio, M. 1; Angeletti, P. 1; Lisi, M. 2 1 European Space Agency (Netherlands); 2Telespazio (Italy) 10:30 Improved Flexibility by In-Orbit-Adjustable Saturation Output Power of TWTs Jaumann, G. TESAT-SPACECOM (Germany) 10:50 Microwave Power Modules in Space: The Mini-RF Transmitter for the Lunar Reconnaissance Orbiter Basten, M. ; Duthie, J. ; Ferek, A. ; LaFortune, D. ; Perkins, J. ; Rein, J. Northrop Grumman (United States) 11:10 Performance Analysis of Satellite Payload Output Sections based on Multiport Amplifiers D'Addio, S. ; Aloisio, M. ; Colzi, E. ; Angeletti, P. European Space Agency (Netherlands) 11:30 Advanced Flexible KU Band MPM Artes 3 Boone, P. 1; Fournier, J. 1; Perrel, M. 3; Maynard, J. 3; Tonello, E. 3; Fayt, P. 4; Pequet, E. 4 1 Thales Electron Devices (France); 2Thales Alenia Space (France); 3Thales Alenia Space (Belgium) 11:50 Evaluation of the Next Steps in Satellite High Power Amplifier Technology: Flexible TWTAs and GaN SSPAs Kaliski, M.; Space Systems/Loral (United States) 12:10-13:40 Lunch Break Poster Session II – Sala Colonne 09:50 - 12:10 Effects of Tip’s Shape on the Beam Loading of a Cavity Quan, Y. ; Ding, Y. ; Wang, S. Institute of Electronics, Chinese Academy of Sciences (China).......................................................................................... P 2.1 Equivalent Circuit Analysis of Out-loaded Cavity Quan, Y. ; Ding, Y. Institute of Electronics, Chinese Academy of Sciences (China).......................................................................................... P 2.2 Design of A Novel 30.5GHz Transition for Gyro-TWT Yu, X.H.; Meng, L.; Niu, X.J. University of Electronic Science and Technology of China (China) .................................................................................. P 2.3 Study of Complex Mode Converter for 3mm-wave Complex Cavity Gyrotron Yu, X. ; Meng, L.; Niu, X. ; Yang, J. University of Electronic Science and Technology of China (China) .................................................................................. P 2.4 A Gyrotron-Traveling-wave Amplifier Based on Lossy Dielectric-coated Metal Cylindrical Waveguide Du, C.; Xue, Q.; Liu, P.; Wang, M. Institute of Electronics, Chinese Academy of Sciences (China).......................................................................................... P 2.5 TWT Life Cost Reduction Program Mitsdarffer, K.B. ; Correll, R.D. NSWC Crane (United States) ............................................................................................................................................... P 2.6 Experimental Characterization of a Ka-Band Sheet-Beam Coupled-Cavity Slow-Wave Structure Larsen, P.B. ; Abe, D.K. ; Cooke, S.J. ; Levush, B. Naval Research Laboratory (United States)........................................................................................................................ P 2.7 Growth Rate of the Coaxial Slow Wave Structure Teng, Y. 1; Tang, C.X. 1; Liu, G.Z. 2; Chen, C.H. 2; Shao, H. 2 1 Tsinghua Special Energy Institute (China); 2Northwest Institute of Nuclear Technology (China).................................. P 2.8 Design and Simulation of 30GHz 4 Cavities Gyroklystron Lei, C. The Chinese People’s Armed Police Forces Academy (China) .......................................................................................... P 2.9 Design of RF Window for 42 GHz, 200kW Gyrotron Alaria, M.K.; Nayek, N., Das, S.; Sinha, A.K. CEERI (India)..................................................................................................................................................................... P 2.10 Traveling Wave Tube on Coupled Cavity Chain: Obstacles in Bandwidth Extension Komarov, D.A. ; Morev, S.P. Federal State Unitary Enterprise “Research and Production Corporation “Toriy” (Russian Federation)................... P 2.11 A Co-Harmonic Gyro-Oscillator with a Novel Interaction Cavity Constable, D. 1; Ronald, K. 1; Phelps, A.D.R. 1; He, W. 1; Cross, A.W. 1; McConville, S.L. 1; Konoplev, I.V. 1; Bandurkin, I.V. 2; Savilov, A.V. 2; Bratman, V.L. 2 1 University of Strathclyde (United Kingdom); 2Institute of Applied Physics, Russian Academy of Science (Russian Federation) .......................................................................................................................................................... P 2.12 Microstrip Meander-Line Slow Wave Structure Based on Electromagnetic Band Gap Surface Bai, N.F. 1; Xue, M 1; Xingqun Z.1, Chao P.1, Liao, F.J. 2; Sun, X.H. 1 1 Research Center for Electronic Device and System Reliability, Southeast University, Nanjing (China); 2 Beijing Vacuum Electronics Research Institute, Beijing (China) .................................................................................................. P 2.13 Design of a Multi-Beam Electron Gun and Cavity for a S-Band Power Klystron Joshi, L.M.; Nandy, P.S.; Karim, R.; Kant, D.; Das, T.; Kant, D.; Pal. D.; Nangru, S.C.; Lamba, O.S.; Ghildiyal, A.; Verma, M.K. Central Electronics Engineering Research Institute, Pilani (India) ................................................................................. P 2.14 Design of Helical Slow Wave Structure for Ka-band 40W Space TWT Bera, A.; Kumar, D. ; Choudhary, A.R. ; Sharma, R.K. ; Srivastava, V. CEERI (India) .................................................................................................................................................................... P 2.15 High Efficiency Multiple Beam Klystron (MBK) Stability Lingwood, C. ; Carter, R.G.; Burt, G. Lancaster University (United Kingdom)............................................................................................................................ P 2.16 12:10-13:40 Lunch Break Poster Session IV – Sala Colonne 09:50 - 12:10 Low Voltage Driven Field Emission from a ZnO Nanotetrapod and MgO Hybrid Emitter with a Spin-Coating Method Zhang, Z.; Qu, K.; Yang, Y. ; Lei, L. Jiangsu Information Display Engineering Research Center, School of Electronic Science and Engineering, Southeast University, Nanjing (China) ................................................................................................................................ P 4.1 Role of Amorphous Phase in Electron Emission from Ferroelectric Copolymer P(VDF-TrFE) Films Li, J. ; Gu, C. Institute of Physics, Chinese Academy Sciences (China) ................................................................................................... P 4.2 Synthesis and Field Emission Property of Tetrapod-like Zinc Oxide Nanostructures by Inductive Heating Zhang, P. ; Lei, W. ; Yang, X.X. ; Qu, K. Jiangsu Information Display Engineering Research Center, School of Electronic Science and Engineering, Southeast University (China) .............................................................................................................................................. P 4.3 Comparative Analysis Microwave and Radiofrequency Heating for Thermal Ablation of Tumor Makarov, V. ; Uschenko, G. Federal State Unitary Enterprise “Research and Production Corporation “Toriy” (Russian Federation)..................... P 4.4 Investigation of Y2O3-Mo Emitter Liu, W.; Wang, J.; Ren, Z.; Gao, F.; Wang, Y.; Zhou, M. College of Materials Science and Engineering, Beijing University of Technology (China).............................................. P 4.5 Field Emission from Vertically Aligned Indium Tin Oxide Tip Array Lee, C.H. ; Lee, S.W. ; Lee, S.S. Korea Advanced Institute of Science and Technology, KAIST (Republic of Korea) ......................................................... P 4.6 Numerical Simulation of Amplification in Hybrid Planar Ubitron Ilyenko, K. ; Goryashko, V. Institute for Radiophysics and Electronics of NAS of Ukraine (Ukraine) ......................................................................... P 4.7 Study of the Performance Comparison between Micro-Chamber Quadrupole Mass Spectrometer and Miniature Quadrupole Mass Spectrometer Xiao, M. ; Zhang, X.; Zhao, Z. Jiangsu Information Display Engineering Research Center, School of Electronic Science and Engineering, Southeast University (China) .............................................................................................................................................. P 4.8 Interaction of Evanescent Wave and Smith-Purcell Radiation Modes in Resonant BWO-DRO Device Lukin, K. 1; Khutoryan, E. 1; Park, G. 2 1 IRE NASU (Ukraine); 2Seoul National University (Republic of Korea) .......................................................................... P 4.9 Simulations of Terahertz Coherent Transition Radiation by an Ultrashort Bunch Generated from the Photocathode Liu, W.1,2,3; Tang, C.1,2,3; Wang, W.1,2,3; Yang, Z.4; Park, G.S.5 1 Department of Engineering Physics, Tsinghua University, Beijing (China); 2Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing (China); 3Key Laboratory of High Energy Radiation Imaging Fundamental Science for National Defense, Beijing (China); 4Institute of High Energy Electronics, University of Electronic Science and Technology of China, Chengdu (China); 5School of Physics and Astronomy, Seoul National University, Seoul (Korea, Republic of)..................................................................................................... P 4.10 The Field Emission Properties of Diamond Films on TiSi2/Si Gu, C.Z. ; Liu, W. National Laboratory for Condensed Matter Physics, Institute of Physics (China) ......................................................... P 4.11 Field Emission Performance of Nanostructured Carbon Films Carta, S. 1; Rossi, M.C. 2; Conte, G. 2; Ralchenko, V. 3 1 CNR IFN National Research Council (Italy); 2University of Roma Tre (Italy); 3Physics Institute, RAS (Russian Federation) ......................................................................................................................................................... P 4.12 Field Emission Microgun for THz Amplifiers Ulisse, G.; Brunetti, F.; Di Carlo, A. University of Rome "Tor Vergata" (Italy).......................................................................................................................... P 4.13 Effect of Ion Bombardment on The Field Emission of a Zinc Oxide Cathode Cui, Y. ; Zhang, X. ; Lei, W. ; Di, Y. ; Wang, J. ; Yang, X. School of Electronic Science & Engineering (China) ...................................................................................................... P 4.14 Electron Field Emission from Wide Band-Gap Semiconductors (GaN) Litovchenko, V. 1; Grygoriev, A. 1; Evtukh, A. 1; Yilmazoglou, O. 2; Hartnagel, H. 2; Pavlidis, D. 2 1 Institute of Semiconductor Physics (Ukraine); 2Technische Universität Darmstadt (Germany) ................................. P. 4.15 Enhanced Field Emission of Tetrapod Zinc Oxide in methane Jinchan Wang, J.; Zhang, X.; Lei, W.; Mao, F.; Cui, Y.; Xiao, M. School of Electronic Science and Engineering, Southeast University, Nanjing; Jiangsu Information Display Engineering Research Center (China)............................................................................................................................... P 4.16 Structure-less Generation of Sub-millimeter Radiation Bishofberger, K.; Svimonishvili, T.; Faehl, R.J.; Carlsten, B.E. Los Alamos National Laboratory (United States) ............................................................................................................. P 4.17 12:10-13:40 Lunch Break Session 11 – Applications – Aula Magna Chair: S. Cauffman, Communications & Power Industries, USA 13:40 170 GHz, 2 MW Coaxial Cavity Gyrotron for ITER - Recent Results Obtained with a Short Pulse Tube (Keynote Presenation) Rzesnicki, T. 1; Piosczyk, B. 2; Gantenbein, G. 2; Jin, J. 2; Kern, S. 2; Samartsev, A. 2; Thumm, M. 3 1 Forschungszentrum Karlsruhe (FZK) (Germany); 2IHM, Forschungszentrum Karlsruhe (Germany); 3 IHE, Universitaet Karlsruhe also IHM, Forschungszentrum Karlsruhe (Germany) 14:00 High Efficient Quasi-Optical Mode Converter for Coaxial ITER Gyrotron Jin, J. 1; Thumm, M. 1,2; Piosczyk, B. 1; Kern, S. 1; Flamm, J. 1,2; Rzesnicki, T. 1 1 Forschungszentrum Karlsruhe, Association EURATOM-FZK, Institut für Hochleistungsimpuls-und Mikrowellentechnik (IHM), Karlsruhe (Germany); 2Universität Karlsruhe, Institut für Höchstfrequenztechnik und Elektronik (IHE), Karlsruhe (Germany) 14:20 Development in Russia of 170 GHz Gyrotron for ITER Litvak, A.G. 1; Denisov, G.G. 1; Agapova, M.V. 2; Gnedenkov, A.Ph. 2; Kostyna, A.N. 2; Nichiporenko, V.O. 2; Myasnikov, V.E. 2; Popov, L.G. 2; Tai, E.M. 2; Usachev, S.V. 2; Zapevalov, V.E. 1; Chirkov, A.V. 1; Ilin, V.I. 3; Ilin, V.N. 2; Kuftin, A.N. 1; Malygin, S.A. 2; Malygin, V.I. 1; Parshin, V.V. 1; Pavel’ev, A.B. 1; Rukavishnikova, V.G. 1; Roschin, Yu.V. 3; Sokolov, E.V. 2; Soluyanova, E.A. 2; Vikharev, A.L. 1 1 Institute of Applied Physics (Russian Federation); 2GYCOM Ltd. (Russian Federation); 3Nuclear Fusion Institute, Research Center “Kurchatov Institute” (Russian Federation) 14:40 Linac for Medical Applications Das, S. ; Krishnan, R. ; Bhagwat, A.P. ; Pethe, S.N. SAMEER (India) 15:20-15:40 Coffee Break Session 13 - Cathodes I – Aula Minor Chair: I. Milsom, E2V Technologies, UK 13:40 Miniature Thermionic Cathode Assembly for High Frequency Linear Beam Devices Vancil, B. 1; Dayton, J. 2; Kory, C. 2; Hawken, K. 3 1 e beam, Inc. (United States); 2Teraphysics Corporation (United States); 3Private Consultant (United States) 14:00 Manufacturing for High-Performance Multibeam Cathodes Yin, S.Y.; Zhang, H.; Ding, Y. Key Labouratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences (China) 14:20 Multi Beam X-Ray Tube with the Field Emitter on the Base of Nanocrystalline Graphite for Computer Tomography Guzilov, I.1; Kuzmich, K.1; Maslennikov, O.1; Smirnova, E.1; Minakov, P.2; Poroykov, A.2; Rakhimov, A.2; Seleznev, B. 2; Sen, V. 2 1 FSUE Toriy (Russian Federation); 2Lomonosov Moscow State University (Russian Federation) 14:40 High Reliability, >10A/cm2, Long-Life, Dispenser Cathodes for Space Applications with Multi-Year In-Orbit Data from the CloudSat Mission Green, M.C. 1; Roitman, A.2; Steer, B.2; Cattelino, M.J.3; Miram, G.V.4; Im, E.5; Tanelli, S.5 1 Varian Medical Systems (United States); 2CPI Millimeter Wave Products (Canada); 3CPI Microwave Power Products (United States);4Consultant, Atherton (United States);5Jet Propulsion Laboratory, California Institute of Technology (United States) 15:00 Recent Progress of Oxide Cathode Research for Microwave Tube Applications in IECAS Wang, X. ; Liao, X. ; Luo, J. ; Zhao, Q. ; Wang, Q. Institute of Electronics,Chinese Academy of Sciences (China) 15:20-15:40 Coffee Break Session 15 - Sheet Beam Devices – Aula 11 Chair: M. Kirshner, L-3 Communications Electron Devices, USA 13:40 X-Band Sheet Beam Klystron (XSBK) (Keynote Presenation) Cusick, M. 1; Atkinson, J. 1; Balkcum, A. 1; Caryotakis, G. 1; Gajaria, D. 1; Grant, T. 1; Meyer, C. 1; Lind, K. 1; Perrin, M. 1; Scheitrum, G. 2; Jensen, A. 3 1 Communications & Power Industries, Inc. (United States); 2Varian (United States); 3SLAC (United States) 14:00 Design of a G-band Sheet-beam Extended-Interaction Klystron Nguyen, K. 1; Pasour, J. 2; Wright, E. 1; Pershing, D. 1; Levush, B. 2 1 Beam-Wave Research, Inc. (United States); 2Naval Research Laboratory (United States) 14:20 Solenoidal Transport of Low-Voltage Sheet Beams for Millimeter Wave Amplifiers Pasour, J.; Nguyen, K. ; Antonsen, T. ; Larsen, P.; Levush, B. Vacuum Electronics Branch, US Naval Research Laboratory (United States) 14:40 0.5THz Smith-Purcell Device using Sheet Electron Beam So, J.K. 1; Srivastava, A. 1; Sattorov, M. 1; Jang, K.H. 1; Won, J.H. 1; Park, G.S. 1; Raju, R.S. 2; Wang, Y. 3; Wang, J. 3 1 Seoul National University (Korea, Republic of); 2Central Electronics Engineering Research Institute (India); 3Beijing University of Technology (China) 15:00 Interaction Simulation of an X-band Sheet Beam Klystron Ruan, W.1,2; Wang, Y. 1; Ding, Y. 1; Ruan, C. 1; Zhang, R. 1; Wang, S. 1; Zhao, D. 1; Han, H. 1,2 1 Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences (China); 2Graduate University of Chinese Academy of Sciences (China) 15:20-15:40 Coffee Break Session 12 - Space Applications – Aula Magna Chair: W. Menninger, L-3 Communications Electron Technologies, USA 15:40 Design of a Ka Band Transmitter for the Bepi Colombo Radioscience Experiment Dainelli, V. 1; Serrano, F. 1; Tomasi, L. 1; Tuninetti, C. 1; Olivieri A.2; Ibba, R. 2 1 Rheinmetall Italia SpA (Italy); 2ASI-Italian Space Agency (Italy) 16:00 High-Power Flexible Payload Architectures for Future European Broadcasting Satellite Services Gabellini, P. ; Russo, L. Space Engineering S.p.A. (Italy) 16:20 A 20 kW X Band High Power Amplifier for ESA DEEP SPACE Ground Stations Dainelli, V. 1; Serrano, F. 1; Tomasi, L. 1; Tuninetti, C. 1; Martì, S. 2; Alessi, G. 2; Maddè, R. 2 1 Rheinmetall Italia SpA (Italy); 2ESA-ESOC (Germany) 16:40 High Power 94 GHz Amplifier for EarthCARE Mission Doppler Radar Gambarara, M. 1; Battisti, A. 1; Cantamessa, M. 1; Roitman, A. 2; Dobbs, R. 2; Berry, D. 2; Steer, B. 2 1 Selex Galileo (Italy); 2Communication & Power Industries (Canada) 17:00 Multipactor Breakdown in Waveguide Irises Semenov, V.E. 1; Rakova, E.I. 1; Nefedov, I.M. 2; Shereshevski, I.A. 2; Vdovicheva, N.K. 2; Udiljak, R. 3; Anderson, D. 3; Lisak, M. 3; Puech, J. 4 1 Institute of Applied Physics, Russian Academy of Sciences (Russian Federation); 2Institute for Physics of Microstructures, Russian Academy of Sciences (Russian Federation); 3Dept. of Radio and Space Science, Chalmers University of Technology (Sweden); 4Centre National d’Etudes Spatiales (France) 17:20 A Study of Oven Magnetrons toward a Transmitter for Space Applications Mitani, T. 1; Kawasaki, H. 2; Shinohara, N. 1; Matsumoto, H. 1 1 Kyoto University (Japan); 2Japan Aerospace Exploration Agency (Japan) Session 14 - Field Emission II – Aula Minor Chair: M. Varasi, Finmeccanica S.p.A, Italy 15:40 Optically Driven Field Emission Array for THz Amplifiers (Keynote Presenation) Guiset, P. ; Combrie, S ; Antoni, T. ; Carras, M. ; De Rossi, A. ; Schnell, J.P. ; Legagneux, P. Thales Research and Technology (France) 16:00 Four-Terminal Field-Emission Characteristics of Double-Gate Metallic Field-Emitter Array Cathodes with Controlled Apex Sizes Fabricated by Molding and Self-Aligned Gate Process Tsujino, T. ; Kirk, E. ; Vogel, T.; Gobrecht, J. Paul Scherrer Institut (Switzerland) 16:40 Microwave Sintering and Field Emission Property of CNTS/Diamond Composite Shan, Y. ; Zeng, B. ; Dong, J. ; Tian, S. ; Xie, M. National Key Laboratory of High Power Vacuum Electronics School of Physical Electronics, University of Electronic Science and Technology of China Chengdu (China) 17:00 Surface Chemical Analysis of Cesium-Iodide (CsI) coated Carbon (C) Fibers and Thin Films for Field Emission Applications Vlahos, V. 1; Morgan, D. 1; Booske, J.H. 1; Shiffler, D. 2 1 University of Wisconsin, Madison (United States); 2Air Force Research Laboratory, Kirtland AFB (United States) 17:20 Improvement of the Field-Emission Characteristics of a Cold Cathode with Nano Particles Wei, L. 1; Xiaobing, Z. 1; Chengxian, H. 2; Guodong, Y. 3 1 School of Electronic Science and Engineering (China); 2GuoGuang Electric Co, Ltd (China); 3Hua Dong Electronics Opto-Electronic Science and Technology Co. Ltd (China) Session 16 - Klystron I – Aula 11 Chair: S. Choroba, Deutsches Elektronen-Synchroton, Germany 15:40 Experimental Progress on the Development of a Multiple-Beam Klystron with 13% Bandwidth (Keynote Presenation) Abe, D.K. 1; Pershing, D.E. 2; Wright, E.L. 3; Nguyen, K.T. 3; Wood, F.N. 1; Myers, R.E. 3; Eisen, E.L. 4; Levush, B. 1 1 US Naval Research Laboratory (United States); 2Beam-Wave Research, Inc (United States); 3Beam-Wave Research, Inc (United States); 4CPI (United States) 16:00 Design and Operation of a High Power, High Efficiency, L-Band Multiple Beam Klystron (Keynote Presenation) Habermann, T. ; Balkcum, A. ; Begum, R. ; Bohlen, H. ; Cattelino, M. ; Cesca, E. ; Cox, L. ; Eisen, E. ; Forrest, S. ; Gajaria, D. ; Kimura, T. ; Ramirez-Aldana, J. ; Staprans, A. ; Stockwell, B. ; Zitelli, L. Communications and Power Industries, Inc. (United States) 16:20 Design, Fabrication, and Test of an X-Band Multiple Beam Klystron Ives, L. 1; Ferguson, P. 1; Marsden, D. 1; Song, L. 1; Read, M. 1; Miram, G. 1; Collins, G. 1; Krasnykh, A. 2; Ivanov, V. 2 1 Calabazas Creek Research, Inc. (United States); 2Stanford Linear Accelerator Center (United States) 16:40 A 500kW, C Band Pulse Power Klystron with Permanent Magnet Luo, J. ; Zhu, M. ; Guo, W. ; Zhang, Y. ; Cui, H. Institute of Electronics, Chinese Academy of Sciences (China) 17:00 Development of a C-Band Broadband Klystron Zhang, Z.C, Fan, J.J., Zhang, Y.W. ; Institute of Electronics, Chinese Academy of Sciences (China) 17:20 Development of an S-band 100MW Klystron in IECAS Wang, Y. ; Xie, J.X. ; Zhang, R.; Ding, Y.; Liu, P. Institute of Electronics, Chinese Academy of Sciences (China) 20:00 Conference Dinner at Castel Sant’Angelo Thursday, 30 April 2009 Session 17 - Systems, Sub-Systems and Components – Aula Magna Chair: G. S. Park, Seoul National University, Korea 08:30 Design of a W Band Transmitter for Surface Movement Radar (SMR) Salimbeni, D. ; Serrano, F. ; Santese, M. ; Serluca, D. Rheinmetall Italia Spa (Italy) 08:50 Technological Evolution of the Microwave Power Module (MPM) Duggal, R. ; Donald, A. ; Schoemehl, T. L-3 Communications - Electron Devices (United States) 09:10 2 to 18 GHz, MPM-Based High-Power Transmitter Suite for Military Airborne ECM Applications Shandas, M.K. dB Control (United States) 09:30 Manufacturing and Tests of TTF III Couplers with Cr2O3 Ceramic Coating Sierra, S. ; Bourat, C. ; Martinez, N. ; Ménétrier, M. ; Denis, P. Thales Components & Subsystems (France) 09:50-10:10 Coffee Break Poster Session V – Sala Colonne 08:30 – 10:10 Three-Stage Relativistic Klystron-Oscillator Kurayev, A.A. ; Sinitsyn, A.K. ; Gourinovitch, A.B. Belarusian State University of Informatics and Radioelectronics (Belarus)...................................................................... P 5.1 Ka– band Double-Beam Klystron Freydovich, I.A.; Maslennikov, O.Yu.; Nevsky, P.V.; Sacharov, V.P.; Zaharov, A.Yu. FSUE "Research&Production Corp. Toriy" (Russian Federation).................................................................................... P 5.2 Extended Interaction Multiple Beam Klystrons Simulation with DEV 5.0 Code Konnov, A.V. Federal State Unitary Enterprise “Research and Production Corporation “Toriy” (Russian Federation) .................... P 5.3 Research of Vacuum Switching Tubes for Converters of Static VAR Compensators Perevodchikov, V. ; Korunov, N. ; Stalkov, P.; Suhov, V. ; Truhatchev, I. ; Shapenko, V. ; Scherbakov, A. Federal State Unitary Enterprise “All-Russian Electrotechnical Institute” (Russian Federation) ................................. P 5.4 Multi Beam S-band Klystron with the Field Emitter Guzilov, I. ; Konnov, A. ; Kuzmich, K. ; Smirnova, E.V.; Maslennikov, O.; Zotov, N.I. FSUE Toriy (Russian Federation) ...................................................................................................................................... P 5.5 Multi Beam C-band Klystron Circuit Design Guzilov, I. ; Konnov, A. ; Maslennikov, O.; Saharov, V.P. FSUE Toriy (Russian Federation) ...................................................................................................................................... P 5.6 Investigation of a 200GHz Microklystron Driven by a Small-scaled Pseudospark Electron Beam Yin, H. 1; Cross, A. W. 1; He, W. 1; Bowes, D. 1; Ronald, K. 1; Phelps, A. D. R. 1; Protz, J. 2; Verdiel, M. 2; Reynolds, M. 2; Schuhmann, T. 2; Chen, X. 3; Li, D. 3; Zhou, J. 3 1 University of Strathclyde (United Kingdom); 2Duke University (United States); 3Queen Mary, University of London (United Kingdom) ................................................................................................................................................... P 5.7 The Resonance System for Making a Regulate Thrust Force in the Electrical Ion Thruster Tsarev, V.A. ; Skripkin, A.A. ; Senchurov, V.A. ; Miroshnichenko, A.Yu. Saratov State Technical University (Russian Federation) ................................................................................................. P 5.8 Analytical Calculations of Efficiency and Comparison with Experimental Data for Inductive Output Tube Tsarev, V.A.; Miroshnichenko, A.Yu. Saratov State Technical University (Russian Federation) ................................................................................................. P 5.9 Mechanism of Efficiency Enhancement in Split-Cavity Electron-Wave Oscillators Barroso, J. National Institute for Space Research (Brazil) ................................................................................................................. P 5.10 Development of a 250 kW CW, 4.6 GHz Klystron for Plasma Heating Lenci, S. ; Eisen, E. ; Lind, K. CPI, Inc (United States) .................................................................................................................................................... P 5.11 Development of a Megawatt C-Band Klystron for Radar Balkcum, A. ; Begum, R. ; Cattelino, M. ; Stockwell, B. ; Wu, C. CPI (United States) ............................................................................................................................................................ P 5.12 3D Electromagnetic Particle-In-Cell Simulations of a Magnetron Based on the Realistic Model Usui, H. 1; Uranishi, Y. 2; Mitani, T. 2 1 Kyoto University (Japan); 2Research Institute for Sustainable Humanosphere, Kyoto University (Japan) ................. P 5.13 Determine the Dispersion Relation of an A6 Magnetron Using Conformal Finite Difference Time Domain Method Lin, M.C. ; Nieter, C. ; Stoltz, P.H. ; Smithe, D.N. Tech-X Corporation (United States) ................................................................................................................................. P 5.14 First Gain Demonstration in an X-band Antenna-Amplifier Shlapakovski, A.S.; Artemenko, S. ; Avgustinovich, V. ; Mashchenko, A. Nuclear Physics Institute at Tomsk Polytechnic University (Russian Federation) ......................................................... P 5.15 Modeling of an Inductive Output Tube with MAGIC Simulation Code Kimura, T. ; Eisen, E.L. ; Grant, T.J. ; Li, Y.X. ; Perrin, M.A. Communications and Power Industries, Inc (United States) ............................................................................................ P 5.16 09:50-10:10 Coffee Break Poster Session VII – Sala Colonne 08:30-10:10 The Effect of Grooved Surface on Dielectric Window Multipactor Chang, C. 1; Liu, G. 2; Huang, H. 2; Chen, C. 2; Zhang, Z. 1; Liang, Z. 2; Hou, Q. 2 1 Tsinghua University (China); 2Northwest Institute of Nuclear Technology (China) ....................................................... P 7.1 Microwave Couplers with Decreased Length Pchelnikov, Yu.N. SloWaveS (United States) .................................................................................................................................................... P 7.2 An Optoelectronic Switch Guo, D.F. 1; Liu, W.C. 2; Tsai, J.H. 3 1 Air Force Academy (Taiwan); 2National Cheng-Kung University (Taiwan); 3National Kaohsiung Normal University (Taiwan) ............................................................................................................................................................. P 7.3 Study on Axially Symmetric Aperture Lenses with Extension of an Inhomogeneous Electric Field Jeon, S.G. ; Kim, J.I. ; Han, S.T. ; Kim, J.U. Korea Electrotechnology Research Institute (KERI) (Republic of Korea) ........................................................................ P 7.4 Influence of the Dispenser Cathodes Surface Structure on their Emission Parameters Djubua, B.Ch. ; Polivnikova, O.V. SRPC "Istok" (Russian Federation) ..................................................................................................................................... P 7.5 Simulation Research on the Sheet Electron Beam Gun Duan, Z. ; Guo, X. ; Guo, F. ; Gong, Y. ; Wei, Y. ; Yue, L. ; Gong, H. ; Wang, W. University of Electronic Science and Technology of China (China) .................................................................................. P 7.6 Surface Flashover Performance of Alumina Insulators at High Voltage Microsecond Pulses in Vacuum Xiang, W. ; Lei, Y.J.; Cheng, Y.L. Institute of Electronic Engineering (China)......................................................................................................................... P 7.8 Emission Properties of Re-W Dispenser Cathodes Taran, A. ; Plankovskyy, S. ; Voronovich, D. ; Abashin, S. National Aerospace University “Kharkiv Aviation Institute” (Ukraine)............................................................................ P 7.9 Optimization of the Broadband Asymmetrical Waveguide Windows Prokofiev, B. FSUE "Scientific and Production Corp. "Toriy" (Russian Federation) ........................................................................... P 7.10 The Spectral Responding Characteristic Research of the Ultraviolet Image Intensifier RongGuo, F. ; Miao, J.J. ; Chang, B.K. ; Qian, Y.S. ; Qiu, Y.F. School of Electronic Engineering and Optical Technology, NanJing University of Science and Technology (China) .. P 7.11 Characterization of Scandate Cathode Emission Zhang, X. ; Wang, Y. ; Wang, J. ; Liu, W. Beijing University of Technology (China) ......................................................................................................................... P 7.12 Cold Cathodes Assembled by Microsized Carbon Nanotubes (CNT) Systems Terranova, M. L. 1; Orlanducci, S. 1; Tamburri, E. 1; Toschi, F.1; Guglielmotti, V. 1; Sessa, V. 1; Rossi, M. 2 1 Università di Roma "Tor Vergata" (Italy); 2Università di Roma "Sapienza" (Italy) ...................................................... P 7.13 Novel Uniform Heating Topology for Thermionic Cathodes Williams, K. 1; Gunther, K. 2; Curtis, M. 2 1 Applied Science and Engineering, LLC (United States); 2HeatWave Labs, Inc. (United States) ................................... P 7.14 Design of A Large Compression Ratio Electron Gun and Uniform Field Focusing System for Ka-Band Exended Interaction Klystron Wang, S.; Wang, Y.; Quan, Y. Institute of Electronics, Chinese Academy of Sciences (China)........................................................................................ P 7.15 09:50-10:10 Coffee Break Session 18 – IOTs – Aula Magna Chair: F. Mirizzi, Enea, Italy 13:40 A Wideband Inductive Output Tube (Keynote Presenation) Kowalczyk, R. ; Kirshner, M. ; True, R. ; Wilsen, C. ; Boyle, M. ; Schult, H. ; Cipolla, J. L-3 Communications EDD (United States) 14:00 On the Prospects of Multibeam IOT for Linac with Efficiency Exceeding 80% (Keynote Presenation) Galdetskiy, A. Istok (Russian Federation) 14:20 High Power UHF IOT for CW and Pulsed Applications O'Sullivan, N. ; Edwards, M.B. e2v technologies (United Kingdom) 14:40 Development of a 350 MHz, 200kW Multiple Beam IOT Ives, L. 1; Read, M. 1; Marsden, D. 1; Jackson, R. 1; Bui, T. 1; Kimura, T. 2; Eisen, E. 2 1 Calabazas Creek Research, Inc. (United States); 2Communications & Power Industries, Inc. (United States) 15:00 Simple Model of an Inductive Output Tube Carter, R.G. Engineering Department, Lancaster University (United Kingdom) 11:50-13:20 Lunch Break Poster Session VI – Sala Colonne 09:50 - 11:50 Automated Noise Measurement System for Radar and EW Transmitter Components Mitsdarffer, K. 1; Crespo, W. 2; Hoover, L. 3 1 NSWC Crane (United States); 2Technology Services Corp (United States); 3Polyphase Microwave (United States) .... P 6.1 Research and Development in a High-Power 6.7 GHz Monotron Barroso, J.J. ; Castro, P.J. ; Rossi, J.O. ; Gonçalves , J.A.N. National Institute for Space Research (INPE) (Brazil) ....................................................................................................... P 6.2 Design Study of a Two-Cavity Monotron Barroso, J.J. National Institute for Space Research (INPE) (Brazil) ....................................................................................................... P 6.3 Automatic System of Measuring Dispersion and Interaction Impedance of Helix SWS Liang, Y.; Li, Z.; Feng, J.; Zhao, S.; Yan, T. Vacuum Electronics National Lab, Beijing Vacuum Electronics Research Institute (China)............................................ P 6.4 High Impedance Electromagnetic Substrate and its Application in Plane Traveling Wave Tubes Liao, F.J. ; Yang, L. Beijing Vacuum Electronics Research Institute (China) ..................................................................................................... P 6.5 Thermodynamics Analysis of Electron Gun for Sheet Beam Klystron Ruan, C.J. ; Wang, S.Z. ; Zhao, D. ; Li, Q.S. Institute of Electronics, Chinese Academy of Sciences (China).......................................................................................... P 6.6 Accurate Large Signal Analysis of a Wideband Helix TWT Using Beam Wave Interaction Simulator Hu, Y.L.; Yang, Z.H.; Li, J.Q.; Li, B.; Huang, T.; Hu, Q.; Zhu, X.F.; Xu, L.; Ma, J.J.; Peng, W.F.; Liao, L.; Xiao, L.; He, G.X. Vacuum Electronics National Laboratory, School of Physical Electronics, University of Electronic Science and Technology of China (China) ............................................................................................................................................... P 6.7 Integrated Method for Simulation of the Statistical Performances of TWT il'ina, E.M. The Federal State Unitary Enterprise NPP "Almaz" (Russian Federation) ...................................................................... P 6.8 Impedance Calculation of Helical Slow-Wave Structure Using HFSS-I and MAFIA Zhu, X.F.; Yang, Z.H.; Li, B.; Li, J.Q.; Xu, L.; Huang, T.; Hu, Q.; Hu, J.L.; Ma, J.J.; Peng, W.F.; Liao, L.; Xiao, L.; He, G.X. Vacuum Electronics National Laboratory, School of Physical Electronics, University of Electronic Science and Technology of China (China) ............................................................................................................................................... P 6.9 Application and Validation of Microwave Tube Simulator Suite Li, B.; Yang, Z.H.; Li, J.Q.; Zhu, X.F.; Huang, T.; Jin, X.L.; Hu, Q.; Hu, J.L.; Xu, L.; Ma, J.J.; Peng, W.F.; Liao, L.; Xiao, L.; He, G.X. Vacuum Electronics National Laboratory, School of Physical Electronics, University of Electronic Science and Technology of China (China) ............................................................................................................................................. P 6.10 Recent Developments to the Electron Optics Simulator Huang, T.; Hu, Q.; Yang, Z.H.; Li, B.; Li, J.Q.; Jin, X.L.; Zhu, X.F.; Hu, J.L.; Xu, L.; Ma, J.J.; Peng, W.F.; Liao, L.; Xiao, L.; He, G.X. Vacuum Electronics National Laboratory, School of Physical Electronics, University of Electronic Science and Technology of China (China) ............................................................................................................................................. P 6.11 Study of Dielectric Loss on Helical Slow-Wave Structure Using High Frequency Circuit Simulator Liang, X.P.; Li, J.Q.; Xu, L.; Yang, Z.H.; Li, B.; Zhu, X.F.; Huang, T.; Hu, Q.; Hu, J.L.; Ma, J.J.; Peng, W.F.; Liao, L.; Xiao, L.; He, G.X. Vacuum Electronics National Laboratory, School of Physical Electronics, University of Electronic Science and Technology of China (China) ............................................................................................................................................. P 6.12 Three-Dimensional Particle-in-Cell Analysis of Beam-Wave Interaction in a Multi-Section Severed Helix TWT Naidu, V.B. ; Datta, S.K. ; Reddy, S.U.M. ; Kumar, L. Microwave Tube Research and Development Centre (India) .......................................................................................... P 6.13 Simulation of RF Coupler of a Multi-Section TWT with Matched Sever-Loss Rao, K.V.; Naidu, V.B. ; Rao, P.R.R. ; Datta, S.K. Microwave Tube Research and Development Centre (India) .......................................................................................... P 6.14 Grid Computing Finite Element Electromagnetic Analysis of TWT Slow-Wave Structures Coco, S. ; Laudani, A. ; Pollicino, G.; Tirrò, P. DIEES University of Catania (Italy) ................................................................................................................................. P 6.15 Design of Vane Loaded Helical Slow-Wave Structures for Broad-Band Traveling-Wave Tubes Teixeira Lopes, D. 1; Costa Motta, C. 2 1 Nuclear & Energetic Research Institute, São Paulo (Brazil); 2University of São Paulo, São Paulo (Brazil) ............... P 6.16 Measurement of the Coupling Impedance in Slow-Wave Structures Using a Longitudinally Conducting Plate Pchelnikov, Y.N. 1; Larsen, P.B. 2 1 SloWaveS (United States); 2Naval Research Laboratory (United States) ...................................................................... P 6.17 Applications and Current Status of the Finite-Element MICHELLE Gun & Collector Simulation Code Petillo, J.1; Panagos, D.1; Ovtchinnikov, S.1; Held, B.2; DeFord, J.2; Nelson, E. 3; Nguyen, K.4; Wright, E.4; Jensen, K.5; Levush, B.5 1 SAIC (United States); 2STAAR Inc. (United States); 3 Los Alamos National Laboratory (United States); 4 BWRI (United States); 5NRL (United States) ................................................................................................................... P 6.18 Band Gap Analyses for High Impedance Electromagnetic Surfaces Using Adaptive Finite Element Method in Frequency Domain Hong, W. 1; Wang, J. 1; Yu, B. 1; Fan, H. 1; Wei, P. 1; Liao, F. 2; Sun, X. 1 1 Research Center for Electronic Device and System Reliability, Southeast University, Nanjing (China); 2 Beijing Vacuum Electronics Research Institute, Beijing (China).................................................................................... P 6.19 11:50-13:20 Lunch Break Poster Session VIII – Sala Colonne 09:50 - 11:50 94GHz Second-Harmonic Gyrotron with Complex Cavity Niu, X.J. Institute of High Energy Electronics, University of Electronics Science and Technology of China (China) ................... P 8.1 Study of Phase Rematch on Overmoded Waveguide Mode Converter Xu, L. 1; Niu, X.J. 2 1 Center of Information Network, Sichuan Normal University of China (China); 2Institute of High Energy Electronics, University of Electronics Science and Technology of China (China) ........................................................... P 8.2 Method to Design a Transition Section with Cosinusoidal Profile Xu, L. 1; Niu, X.J. 2 1 Center of Information Network, Sichuan Normal University of China (China); 2Institute of High Energy Electronics, University of Electronics Science and Technology of China (China) ........................................................... P 8.3 Modes in Lossy Dielectric-Loaded Metal Cylindrical Waveguide for Gyrotron-Traveling-Wave Amplifier Applications Xue, Q.Z. ; Du, C. ; Liu, P. ; Wang, M. Institute of electronics, Chinese Academy of Sciences (China) .......................................................................................... P 8.4 A Study of Nonlinear Oscillation Behavior of a Driven Gyrotron Backward-Wave Oscillator Yeh, Y.S.; Shiao, J.-L.; Huang, C.-T.; Lo, C.-Y. Southern Taiwan University, (Taiwan) ............................................................................................................................... P 8.5 Frequency Doublers with Transverse Modulation and Bunching of the Electron Beam under Inhomogeneous Magnetic Field Kurayev, A.A. ; Rak, A.O. ; Sinitsyn, A.K. ; Tsyrelchuk, I.N. Belarusian State University of Informatics and Radioelectronics (Belarus) ..................................................................... P 8.6 Optimal design of high frequency structure for a 34 GHz, four-cavity Gyroklystron Liu, Y.-h.; Li, H.-f.; Niu, X.-j.; Wang, L.; Luo, Y.; Yu, S.; Zhao, Q.; Deng, X.; Wang, H.; Xu, Y.; Pu, Y.-l.; Sun, Y. Research Institute of High Energy Electronics, University of Electronic Science and Technology of China (China) ..... P 8.7 Design of a Ka-Band TE11 Mode Gyrotron Traveling-Wave Amplifier Xu, S-X. ; Liu, P-K. ; Zhang, S-C.; Du, C-H. ; Xue, Q-Z.; Geng, Z-H.; Su, Y-L. Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing (China) ................................................................................................................................................ P 8.8 Experimental Investigation of 94 GHz Second-Harmonic Gyrotrons Niu, X.J.; Wang, L.; Li, H.-f. Institute of High Energy Electronics, University of Electronics Science and Technology of China (China) ................... P 8.9 8mm High Power TE01-TM11 Mode Converter in Overmoded Waveguide Xu, L. 1; Niu, X.J. 2 1 Center of Information Network, Sichuan Normal University of China (China); 2Institute of High Energy Electronics, University of Electronics Science and Technology of China (China) ......................................................... P 8.10 The High-Power Gyroton Kolosov, S.V. ; Kurayev, A.A. ; Kharseyev, A.P. ; Senko, A.V. Belarus State University of Informatics and Radioelectronics (Belarus) ........................................................................ P 8.11 Thermal Analysis of Magnetron Injection Gun Siva Rao, P.V. ; Srikrishna, P. ; Sharma, N.K. ; Subramanian, S. Microwave Tube Research & Development Centre (India) ............................................................................................. P 8.12 A Klystron Power System for the ISIS Front End Test Stand Kempkes, M. ; Schrock, K. ; Ciprian, R. ; Hawkey, T. ; Gaudreau, M.P.J. Diversified Technologies, Inc. (United States) ................................................................................................................. P 8.13 Investigation of Vircator with Time-Frequency Analysis Wu, J.S. 1; Wang, J.D. 1; Chu, K.R. 2 1 CSIST (Taiwan); 2NTHU (Taiwan) .................................................................................................................................. P 8.14 Converting Low-Order Circular Electric Modes to Gaussian Beams in High-Frequency Gyrotrons Cauffman, S. CPI (United States) ............................................................................................................................................................ P 8.15 Development of Window for First Indian Gyrotron Subrata, D. 1; Narugopal, N. 1; Subhadra, K. 1; Manoj, K. 1; Naik, A. 1; Chatterjee, S. 2; Majumdar, A. 2; Kartikeyan, M.V. 3; Sinha, A.K. 4; Jain, P.K. 5; Satyanarayana, K. 6; Joshi, S.N. 4; Das, A.L. 2 1 SAMEER, Hill Side, IIT Campus (India); 2SAMEER, Electronics Complex (India); 3IIT (India); 4CEERI (India); 5 BHU (India); 6IPR (India) ................................................................................................................................................ P 8.16 11:50-13:20 Lunch Break Session 19 – Modelling – Aula Magna Chair: B. Levush, Naval Research Laboratory, USA 13:20 Perfectly Matched Boundary Condition for Helical Slow Wave Structures David, J.F. 1; Le Clair, A. 1; Birtel, P. 2 1 Thales Electron Devices (France); 2Thales (Germany); 3Thales Electron Devices (Germany) 13:40 Frequency Domain Simulation of Drive Induced Oscillation in a Coupled Cavity TWT Chernin, D. 1; Antonsen, Jr., T.M. 2; McDonald, J. 3; Levush, B. 3; Begum, R. 4; Legarra, J. 4 1 SAIC (United States); 2University of Maryland (United States); 3Naval Research Laboratory (United States); 4CPI (United States) 14:00 Investigation of a 95GHz Helical TWT with CST STUDIO SUITE™ Balk, M.C. 1; Kory, C.L. 2; Dayton, J.A. 2 1 Computer Simulation Technology AG (CST) (Germany); 2Teraphysics, Corp. (United States) 14:20 Improved Symmetries in the Finite-Element Gun Code MICHELLE Nelson, E. 1; Levush, B. 2; Petillo, J. 3 1 Los Alamos National Laboratory (United States); 2Naval Research Laboratory (United States); 3 SAIC (United States) 14:40 Computational Modeling of Field Enhancement in an Individual Carbon Nanotube Field Emitter System Niemann, D.L. 1; Ribaya, B.P. 1; Gunther, N.G. 2; Leung, J. 1; Rahman, M. 2; Nguyen, C.V. 1 1 NASA Ames Research Center (United States); 2Santa Clara University (United States) 15:00-15:20 Coffee Break Session 21 - Gyro-Devices II – Aula Minor Chair: M. Petelin, Institute of Applied Physics, RAS, Russia 13:20 Theory of Aftercavity Interaction in Gyrotrons Nusinovich, G. 1; Sinitsyn, O. 2 1 University of Maryland (United States); 2IREAP, University of Maryland, College Park (United States) 13:40 Prospective Gyro-Devices for Technological Applications Denisov, G.; Bykov, Yu.; Eremeev, A.; Glyavin, M.; Luchinin, A.; Morozkin, M.; Samsonov, S. Institute of Applied Physics/GYCOM (Russian Federation) 14:00 Simulation and Evaluation of Components for a GyroTWA Duffield, M. ; Doherty, G. ; North, R. ; Butler, M. ; Griggs, A. e2v (United Kingdom) 14:20 Design, Simulation and Experiment of a Cusp Electron Beam for Millimeter Wave Gyro-devices He, W. 1; Donaldson, C.R. 2; Li, F. 2; Cross, A.W. 2; Phelps, A.D.R. 2; Ronald, K. 2; Robertson, C.W. 2; Whyte, C.G. 2; Zhang, L. 2 SUPA, Department of Physics, University of Strathclyde, Glasgow, Scotland (United Kingdom) 14:40 A THz Gyrotron Based on a Pulse Solenoid Read, M.E.; Ives, R.L. ; Neilson, J. ; Mizuhara, M.; Marsden, D. Calabazas Creek Research Inc. (United States) 15:00-15:20 Coffee Break Session 23 - Cathodes II – Aula 11 Chair: E. Jensen, CERN, Switzerland 13:20 Diamond Current Amplifier for Spatially-Distributed Beam Generation Yater, J. 1; Shaw, J. 1; Jensen, K. 1; Butler, J. 1; Feygelson, T. 2; Pate, B. 1 1 Naval Research Laboratory (United States); 2SAIC (United States) 13:40 High Current Density and Long Life Nanocomposite Scandate Dispenser Cathode Fabrication Zhao, J. 1; Li, N. 2; Li, J. 2; Luhmann, N. 1 1 University of California, Davis (United States); 2Beijing Vacuum Electronics Research Institute (China) 14:00 Emission Property of Impregnated Cathode with Y2O3 and Sc2O3 Co-Doped Tungsten Substrate Wang, J. 1; Liu, W. 2; Gao, T. 1; Li, L. 1; Wang, Y. 1; Zhou, M. 1 1 School of Materials Science and Engineering, Beijing University of Technology (China); 2Beijing University of Technology (China) 14:20 Verification of the TED Cathode Models by Longterm Lifetest Data Brueck, M. 2; Hilble, T. 2 ; Morel, S. 1; Roquais, J.-M. 1; Seidel, H. 2 1 Thales Electron Devices (France); 2Thales Electron Devices GmbH (Germany) 14:40 Performance of Tungsten Wire Reservoir Cathodes Ives, L. 1; Falce, L. 1; Collins, G. 1; Marsden, D. 1; Miriam, G. 1; Gunther, K. 2; Curtis, M. 2; Schwartzkopf, S. 3; Smith, B. 3; Witherspoon, R. 3 1 Calabazas Creek Research, Inc. (United States); 2Heatwave Laboratories, Inc. (United States); 3 Ron Witherspoon, Inc. (United States) 15:00-15:20 Coffee Break Session 20 - Klystron II – Aula Magna Chair: Y. Ding, Chinese Accademy of Science, China 15:20 Numerical and Experimental Design Study of Quasi-Optical Multi-Gap Output Cavity for W-band Sheet Beam Klystron (WSBK) (Keynote Presenation) Shin, Y.M. ; Barnett, L.R. ; Luhmann Jr., N.C. University of California, Davis (UCD) (United States) 15:40 Design and Operation of a 2.5 MW, PPM Focused X-Band Klystron Balkcum, A. ; Begum, R. ; Cattelino, M. ; Cox, L. ; Forrest, S. ; Friedlander, F. ; Roeder, L. ; Staprans, A. ; Stockwell, B. ; Wu, C. ; Zitelli, L. CPI (United States) 16:00 High Power X-Band Klystron Kirshner, M. ; Kowalczyk, R. ; Wilsen, C. ; True, R. L-3 Communications EDD (United States) 16:20 Research Progress on S-band Broadband Multi-Beam Klystron Ding, Y.; Shen, B.; Cao, J.; Miao, Y. Institute of Electronics, Chinese Academy of Sciences, (China) 16:40 Development of C-band CW 10 kW Broadband Klystron Shen, B. ; Ding, Y.G. ; Ding, H.B. ; Cao, M. ; Wang, C.Y. ; Tang, K. Institute of Electronics, Chinese Academy of Sciences (China) 17:00 Autopsy Report on Three SLAC X-Band Klystron Output Circuits Laurent, L.; Jongewaard, E. SLAC National Accelerator Laboratory (United States) 17:20-17:30 Closing Remarks – Aula Magna Session 22 - FELs, Magnetrons and Novel Devices – Aula Minor Chair: A. Di Carlo, University of Rome Tor Vergata, Italy 15:20 The ENEA Activity on Compact Far Infrared FELs (Keynote Presenation) Doria, A. ; Gallerano, G.P. ; Giovenale, E. ; Messina, G. ; Petralia, A. ; Spassovsky, I. ENEA (Italy) 15:50 The ENEA Activity on Applications with FELs Doria, A. 1; Gallerano, G.P. 1; Giovenale, E. 1; Messina, G. 1; Spassovsky, I. 1; Petralia, A. 1; Gupta, L. 1; d’Aquino, L. 2; Ramundo, A. 3; Foglietti, V. 4; Ortolani, M. 4; Fukunaga, K. 5 1 ENEA-ICTP Fellow (Italy); 2ENEA – Centro Ricerche Portici (NA) (Italy); 3CNR – Istituto di Neurobiologia e Medicina Molecolare, Rome (Italy); 4CNR – Istituto di Fotonica e Nanotecnologie, Roma (Italy); 5 National Institute of Information and Communication Technology, Tokyo (Japan) 16:00 High Average Power C & X - Band Magnetrons Robinson, J. Communications & Power Industries (United States) 16:20 Conceptual Design of a 1MW 175MHz CW Magnetron Carter, R. Lancaster University (United Kingdom) 16:40 Concepts for Circular Deflection Modulated Tubes and Frequency Multiplying Millimeter Wave Sources Grede, A. ; Henke, H. Technische Universitaet Berlin (Germany) 17:20-17:30 Closing Remarks – Aula Magna Session 24 - Technology: Guns, Cathodes and Materials – Aula 11 Chair: R. Martorana, Selex Galileo, Italy 15:20 A Design Study of a Permanent Magnet Quadrupole Focused Helix Traveling-Wave Tube Abe, D.K. 1; Kishek, R. 2; Petillo, J.J. 2; Chernin, D.P. 2; Levush, B. 1 1 U.S. Naval Research Laboratory (United States); 2Science Applications International Corp. (United States) 15:40 RF Power Absorption and Electric and Magnetic Field Enhancements Due to Surface Roughness Zhang, P. ; Lau, Y.Y. ; Gilgenbach, R.M. University of Michigan (United States) 16:00 An In Situ Emission Microscopy Study of Barium Supply to the Surface of Scandium-coated Porous Tungsten Vaughn, J.M. 1; Jamison, K.D. 2; Kordesch, M.E. 1 1 Department of Physics and Astronomy, Ohio University, Athens Ohio (United States); 2Nanohmics, Inc., Austin, Texas (United States) 16:20 An Optimizer for Beam Optics Analyzer Bui, T. 1; Ives, L. 1; Attarian, A. 2; David, J. 2; Tran, H. 2; Posth, M. 3 1 Calabazas Creek Research Inc. (United States); 2North Carolina State University (United States); 3 Consultant (United States) 16:40 Wetting of Mo/Ni Nano-particles for Dispenser Cathodes Mo/Re Brazing Applications Busbaher, D. 1; Sekulic, D. 2 1 Semicon Associates (United States); 2University of Kentucky (United States) 17:00 New Grade of Temperature Compensated Samarium Cobalt Permanent Magnets and Design Considerations Takasumi, K. ; Dent, P. ; Liu, J. ; Marinescu, M. ; Walmer, M. Electron Energy (United States) 17:20-17:30 Closing Remarks - Aula Magna Venue The Angelicum, Pontifical University is heir of the mediaeval Studium founded by the Dominican Order, indeed by St. Thomas Aquinas himself, as well as of the College of St. Thomas, which Monsignor Juan Solano O.P., Bishop emeritus of Cuzco (Peru), established in 1577 at the Convent of Santa Maria sopra Minerva in Rome. Awards IVEC Award for Excellence in Vacuum Electronics The IVEC Award for Excellence in Vacuum Electronics was established in 2002 to recognize outstanding contributions to the field. Anyone or any group of persons working in the field of vacuum electronics is eligible for this award, which will be presented each year during the IVEC conference. Anyone in the field may place a colleague in nomination. Selection of the winner has been made by a vote of the members of the Technical Committee. The winner will receive a commemorative plaque and an award of $2000. Previous recipients of the IVEC Award for Excellence in Vacuum Electronics: 2002- Armand Staprans, Communication and Power Industries, USA 2003- George Caryotakis, Stanford Linear Accelerator, USA 2004- Georges Fleury, Thales Electron Devices, France 2005- Joe Saloom, Technical Consultant, USA 2006- Jim Dayton Jr., Genvac Aerospace Corp., USA 2007- Baruch Levush, Naval Research Laboratory, USA 2008- Manfred Thumm, University of Karlsruhe, Germany IVEC Best Student Paper Award The IVEC Best Student Paper Award was introduced at IVEC 2004 to recognize and promote exceptional student contributions to the field. IVEC 2009 will continue the tradition of selecting an outstanding, student-authored and student-presented paper for the honour of "Best Student Paper Award". Eligible papers are those with a student as the principle author and presenter. Students are considered as individuals pursuing a baccalaureate or graduate degree at the time of the conference or during the past year when the work was completed. After ranking by the Technical Program Committee, a number of student papers are selected for finalist consideration. Finalist students will present a 10-minute synopsis talk on their work on Wednesday 29 April (lunch break) and, from these brief summary talks, a winner will be selected. The award will include an engraved plaque and a 500 Euro check (this year kindly supported by Ares Consortium). Social and Technical Events 27 April 2009 On-site registration The on-site registration for IVEC 2009 will start on 27 April at 14:00 and will last until 19:30. Workshop IVEC 2009 will host a workshop given by CST on EM 3D Simulation with CST STUDIO SUITE 2009 and Introduction to CST PARTICLE STUDIO 2009 (from 14:00 until 18:00). Welcome cocktail A welcome cocktail will follow (18:00-19:30) 28 April 2009 Private visit to Vatican Museums and Sistine Chapel. 19.00-21.00hrs. Busses to the Vatican Museum have been arranged and will leave at 18.15hrs from the Angelicum. 29 April 2009 Conference Dinner The IVEC 2009 conference dinner will take place at Castel Sant'Angelo. 20.00 Aperitive 20.20 Student Award (supported by Ares Consortium) 20.30 Dinner Castel Sant'Angelo (Mausoleum of Hadrian) is a towering cylindrical building, commissioned between 135 and 139 A.D. by the Roman Emperor Hadrian as a mausoleum for himself and his family. The building was later used as a fortress and castle, and is now a museum. Immersed in the unique atmosphere of this magnificent historical building, attendees will be able to enjoy a spectacular panoramic view over Rome and savour the delicacies of the Italian gastronomy. In order to enjoy the most of the location, we strongly advise all attendees to wear comfortable shoes and bring a jacket. From 19.15hrs a buss shuttle will be available from the Angelicum to Castel Sant'Angelo. Practical Information Messages Messages for participants will be posted on the message board at the IVEC 2009 Registration desk. Lunchbreaks In the surroundings of the Angelicum there are many restaurants and bars for a quick and tasty lunch. Proceedings Each participant will be provided with an abstract book. Additional abstract books can be purchased at the registration desk for €50,-. Usefull Phonenumbers Please find below some useful phonenumbers for the Conference and your stay in Rome. IVEC 2009 Registration desk: +39331-4746580 Taxi: +3906-3570/ +3906-4994/ +3906-5551 Police: 112 or 113 Fire Department: 115 Ambulance: 118 "Possis nihil Urbe Roma visere maius" ("May you see nothing greater than the city of Rome") - Orazio "Yes, I have finally arrived to this Capital of the World! I now see all the dreams of my youth coming to life... Only in Rome is it possible to understand Rome" - Johann Wolfgang von Goethe "Rome is like a book of fables, on every page you meet up with a prodigy. And at the same time we live in dream and reality" - Hans Christian Andersen