Presidential Board President Vice-president Member of the Presidential Board Prof. Dr. J. Ullrich phone 1000 Dr. R. Schwartz phone 2000 Dr. J. Stenger phone 3000 Presidential Staff Office Press and Information Office Conformity Assessment *Dr. H. Rabus phone 1009 Dr. Dr. J. Simon phone 3005 Dr. R. Schwartz phone 2000 Organization Chart Head of the Berlin Institute and the President`s Representative in Berlin Dr. G. Ulm phone (Ch) 7312 Quality Manager Internal Revision Dr. K. Stoll-Malke phone 8330 T. Hohlweg phone 9012 Division 1 Mechanics and Acoustics Division2 Electricty Division 3 Chemical Physics and Explosion Protection Division 4 Optics Division 5 Precision Engineering Division 6 Ionizing Radiation Division 7 Temperature and Synchrotron Radiation Prof. Dr. F. Härtig phone 1010 Dr. U. Siegner phone 2010 Dr. B. Güttler Tel. 3010 Prof. Dr. F. Riehle phone 4010 Dr. H. Bosse phone 5010 *Dr. J. Stenger phone 6010 Dr. G. Ulm phone (Ch) 7312 Department 1.1 Mass - Dissemination of the Unit Department 2.1 Direct Current and Low Frequency Department 3.1 Metrology in Chemistry Department 4.1 Photometry and Applied Radiometry Department 5.1 Surface Metrology Department 6.1 Radioactivity Department 7.1 Radiometry with Synchrotron Radiation Department 8.1 Medical Metrology Section Q.11 Academic Library Section Z.11 Budget and Procurement Dr. D. Knopf phone 1100 Dr. J. Melcher phone 2100 Dr. R. Stosch phone 3100 Prof. Dr. S. Kück phone 4100 Dr. L. Koenders phone 5100 Dr. D. Arnold phone 6100 Prof. Dr. M. Richter phone (Ad) 7100 Dr. B. Ittermann phone (Ch) 7318 Dr. J. Meier phone 8131 M. Wasmuß phone 9110 Department 1.2 Solid Mechanics Department 2.2 High Frequency and Electromagnetic Fields Department 4.2 Imaging and Wave Optics Department 5.2 Dimensional Nanometrology Department 8.2 Biosignals Section Q.12 Translation Office Section Z.12 Personnel Dr. T. Schrader phone 2200 Dr. E. Buhr phone 4200 Dr. J. Flügge phone 5200 Department 6.2 Dosimetry for Radiation Therapy and Diagnostic Radiology Dr. U. Ankerhold phone 6200 Department 7.2 Cryophysics and Spectrometry Dr. R. Kumme phone 1200 Department 3.2 Analytics and Thermodynamic State Behaviour of Gases Prof. Dr. V. Ebert phone 3200 Dr. T. Schurig phone (Ch) 7290 Dr. L. Trahms phone (Ch) 7213 U. Baier-Blott phone 9332 S. Wiemann phone 9120 Department 1.3 Velocity Department 2.3 Electrical Energy Measuring Techniques Department 3.3 Thermophysical Quantities Department 4.3 Quantum Optics and Unit of Length Department 5.3 Coordinate Metrology Department 6.3 Radiation Protection Dosimetry Department 8.3 Biomedical Optics Department Q.3 Legal Metrology and Technology Transfer Section Z.13 Legal Department Dr. R. Wynands phone 1300 Dr. M. Kahmann phone 2300 Prof. Dr. R. Fernandes phone 3300 Dr. H. Schnatz phone 4300 Dr. K. Kniel phone 5300 Dr. A. Röttger phone 6300 Department 7.3 Detector Radiometry and Radiation Thermometry Dr. J. Hollandt phone (Ch) 7369 Prof. Dr. R. Macdonald phone (Ch) 7542 Dr. D. Ratschko phone 8300 Department 1.4 Gas Flow Department 2.4 Quantum Electronics Department 3.4 Physical Chemistry Department 4.4 Time and Frequency Department 5.4 Interferometry on Material Measures Department 6.4 Neutron Radiation Department 7.4 Temperature Department 8.4 Mathematical Modelling and Data Analysis Department Q.4 Information Technology Section Z.14 Organization and Controlling Dr. H. Többen phone 1400 Dr. A. Zorin phone 2400 *Dr. B. Güttler phone 3010 Dr. E. Peik phone 4400 Dr. R. Schödel phone 5400 Dr. A. Zimbal phone 6530 Dr. J. Fischer phone (Ch) 7473 Prof. Dr. M. Bär phone (Ch) 7687 Dr. S. Hackel phone 8400 Dr. J. Jaspers phone 9140 Department 1.5 Liquid Flow Department 2.5 Semiconductor Physics and Magnetism Department 3.5 Explosion Protection in Energy Technology Department 5.5 Scientific Instrumentation Department 6.5 Radiation Effects Department 7.5 Heat and Vacuum Department 8.5 Metrological Information Technology Department Q.5 Technical Cooperation Section Z.15 Berlin Administration Dr. G. Wendt phone 1500 Dr. H. W, Schumacher phone 2500 Prof. Dr. U. Klausmeyer phone 3500 Dr. F. Löffler phone 5500 Dr. H. Rabus phone 6600 Dr. T. Lederer phone (Ch) 7230 Dr. F. Thiel phone (Ch) 7529 Dr. M. Stoldt phone 8200 A. Lubinus phone (Ch) 7449 Department 1.6 Sound Department 2.6 Quantum Electrical Metrology Department 3.6 Explosion Protection in Sensor Technology and Instrumentation Dr. F. Lienesch phone 3600 Group Q.6 Technical Infrastructure Section Z.16 Internal Services *Dr. P. Ulbig phone 8010 A. Grote phone 9160 Section Q.61 Labour Protection and Safety Management Section Z.17 Training Dr. C. Koch phone 1600 Dr. F. J. Ahlers phone 2600 Department 1.7 Acoustics and Dynamics Department 3.7 Fundamentals of Explosion Protection Dr. T. Bruns phone 1700 Dr. M. Beyer phone 3700 Department 1.8 Mass - Realization of the Unit Dr. H. Bettin phone 1800 General Staff Council S. Brandes phone Local Staff Council for Braunschweig W. Krien phone Local Staff Council for Berlin R. Thomas phone Equality Commissioner B. Behrens phone General Representative of Disabled Persons R. Lütge phone Representative of Disabled Persons in Braunschweig R. Lütge phone Representative of Disabled Persons in Berlin C. Aßmann phone Section 6.71 Operational Radiation Protection Division 8 Medical Physics and Metrological Information Technology Prof. Dr. T. Schäffter phone (Ch) 7343 As of October 1, 2016 Department IB.T Technical-scientific Infrastructure Berlin Dr. R. Simmer phone 6710 Dr. F. Melchert phone (Ch) 7446 (Ch) 7337 9133 1097 1097 (Ch) 7964 Division Z Administrative Services Dr. P. Ulbig phone 8010 C. Tampier phone 9010 M. Gahrens phone 9130 QUEST Institute at PTB FPM Fundamental Physics for Metrology Junior Research Group 4.01 Metrology for Functional Nanosystems M. Frühauf phone 9170 B. Weihe phone 9240 Prof. Dr. P. O. Schmidt phone 4700 Prof. Dr. A. Surzhykov phone 8100 Dr. S. Kroker phone 4530 Section Q.62 Technical Service Braunschweig Committees B. Staab phone 8620 Section Z.18 Business Applications M. Battikh R. Ohl phone 3597 / 8430 1098 1092 Division Q Scientific-technical Cross-sectional Tasks Staff Investments IT-Infrastructure Metrological Services International Cooperation Quality Management Research Programs C-S C-IV C-IT C-MS C-IC C-QM C-RP Dr. Löffler Dr. Schwartz Dr. Hackel Dr. Schwartz Dr. Stenger Dr. Stoll-Malke Dr. Stenger phone 5500 phone 2000 phone 8400 phone 2000 phone 3000 phone 8330 phone 3000 Section Q.63 PTB Fire Brigade B. W. Klose phone 9998 Explanations *performed by Extensions: Braunschweig +49 531 592-0 (Ch) Berlin-Charlottenburg +49 30 3481-0 (Ad) Berlin-Adlershof +49 30 3481-0