Lista nr. 1
Dr. Constantin Ciortea
Lucrări publicate în reviste cotate ISI
1. Title: K-shell ionization in (0.2–1.75) MeV/u Fe, Co + Cr and Fe + Cu collisions
Author(s): C. Ciortea, I. Piticu, D. Flueraşu, D.E. Dumitriu, A. Enulescu, M.M. Gugiu, A.T. Radu and L.C.
Penescu
Source: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials
and Atoms, Volume 235, Issues 1-4 , July 2005, Pages 342-346
Cited References: 10 Times Cited: 0
(1) 1,14/8=0,143;
(2) 1,14/6=0,190
Abstract: K-shell ionization cross-sections and mean vacancy sharing probabilities measured in the nearsymmetric collision systems Fe, Co, Cu + Cr and Fe + Cu at 0.2–1.75 MeV/u energies are reported. Beams
of 56Fe, 59Co and 63Cuq+ ions (3 <q< 12) delivered by the Van de Graaff tandem accelerator of NIPNE
Bucharest were used. The cross-section values have been corrected for multiple ionization in the outer (L,
M) shells by using the energy and yield shift method. Mean ionization probabilities per electron in the outer
shells have been estimated. Calculations in the Briggs model, using SCA with relativistic hydrogenic wave
functions and binding energy corrections, could explain the 2pσ-molecular orbital ionization cross-sections
at higher energies 1 MeV/u). The vacancy sharing results show that predictions of the two-state coupling
Demkov–Meyerhof model are less fulfilled at higher energies 1.5 MeV/u).
Keywords: Inner-shell ionization; X-ray spectrometry; Integral cross-sections; Quasimolecular excitation;
Vacancy sharing
PACS: 34.50.Fa; 32.30.Rj
Addresses: Ciortea C (reprint author), Department of Nuclear Physics, National Institute of Physics and
Nuclear Engineering “Horia Hulubei”, P.O. Box MG-6, Bucharest, Romania
E-mail Addresses: ciortea@tandem.nipne.ro
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
2. Title: Distribution of some major and trace elements in Danube Delta lacustrine sediments and soil
Author(s): Dinescu LC, Steinnes E, Duliu OG, Ciortea C, Sjobakk TE, Dumitriu DE, Gugiu MM,
Haralambie M
Source: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 262 (2): 345-354 2004
Cited References: 27 Times Cited: 0
(1) 0,61/8=0,076;
(2) 0,61/6=0,102
Abstract: Sediment cores collected from lakes Mesteru and Furtuna (eastern part), Sontea channel and soil
samples collected from Caraorman bar, all located in the Danube Delta, were analyzed for 42 elements (Ag,
Al, As, Be, Na, Mg, P, S, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Br, Rb, Sr, Y, Mo, Ag,
Cd, In, Sn, Sb, Cs, Ce, Hf, Hg, Tl. pb, Bi, Th. U) by instrumental neutron activation analysis (INAA), thick
target proton induced X-ray emission (TT-PIXE) and inductively coupled plasma-mass spectrometry (ICPMS). The INAA and TTPIXE yielded total concentrations whereas the ICP-MS data reflected the fractions
soluble in 14M HNO3. The ICP-MS data exhibited surface enrichment relative to the lower part of the
sediment core of Cu, Zn, As, Ag, Cd, In, Sn, Sb, Hg, Tl, Pb, and Bi, most prominently by Cd and Hg. Their
vertical distribution in the investigated cores generally reflected the pollution history of recent sediments in
Danube delta, showing a steady increase until the end of the 1980s followed by a slow decrease after 1990.
The vertical profiles of most remaining elements were characterized by a relatively uniform distribution
along the cores. In some cases, the concentrations of As, Cd, Cu, Cr, Mn, Ni and Pb exceeded minimum
thresholds of safety, as defined by the Romanian regulations. The elemental composition of the sediment
below 20 cm depth (total concentrations) was similar to that of the upper continental crust (UCC) for most
elements. Values distinctly higher than UCC were observed for As, Sb (factor similar to5) and Cr, Ni, Cu
(factor 2 to 3). The nitric acid soluble element concentrations in the soil samples in some cases showed
increased values at the surface as compared to 30 cm depth, either due to air pollution or to the action of
1
plants. In no case a large contribution to the topsoil from atmospheric deposition was evident, indicating
that the surface contamination of the sediments was mainly by riverine transport.
KeyWords Plus: NEUTRON-ACTIVATION ANALYSIS; VERTICAL-DISTRIBUTION; POLLUTION;
RIVER
Addresses: Duliu OG (reprint author), Univ Bucharest, Dept Atom & Nucl Phys, POB MG-11, Bucharest,
RO-077125 Romania
Univ Bucharest, Dept Atom & Nucl Phys, Bucharest, RO-077125 Romania
Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, RO-077125 Romania
Norwegian Univ Sci & Technol, Dept Chem, Trondheim, NO-7491 Norway
E-mail Addresses: duliu@pcnet.ro
Publisher: KLUWER ACADEMIC PUBL, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT,
NETHERLANDS
Subject Category: CHEMISTRY, ANALYTICAL; CHEMISTRY, INORGANIC & NUCLEAR;
NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: 867QR
ISSN: 0236-5731
3. Title: Standardless PIXE analysis of thick biomineral structures
Author(s): Preoteasa EA, Georgescu R, Ciortea C, Fluerasu D, Harangus L, Iordan A, Severcan F, Boyar
H, Preoteasa E, Piticu I, Pantelica D, Gheordunescu V
Source: ANALYTICAL AND BIOANALYTICAL CHEMISTRY 379 (5-6): 825-841 JUL 2004
Cited References: 110 Times Cited: 0
(1) 2,098/12=0,175;
(2) 2,098/7,333=0,286
Abstract: The particle-induced X-ray emission (PIXE) of thick biomineral targets provides pertinent
surface analysis, but if good reference materials are missing then complementary approaches are required
to handle the matrix effects. This is illustrated by our results from qualitative and semiquantitative analysis
of biornaterials and calcified tissues in which PIXE usually detected up to 20 elements with Z > 14 per
sample, many at trace levels. Relative concentrations allow the classification of dental composites
according to the mean Z and by multivariate statistics. In femur bones from streptozotocin-induced diabetic
rats, trace element changes showed high individual variability but correlated to each other, and multivariate
statistics improved discrimination of abnormal pathology. Changes on the in vitro demineralization of
dental enamel suggested that a dissolution of Ca compounds in the outermost layer results in the
uncovering of deeper layers containing higher trace element levels. Thus, in spite of significant limitations,
standardless PIXE analysis of thick biomineral samples together with proper additional procedures can
provide relevant information in biomedical research.
Author Keywords: PIXE; trace elements; biomaterials; dental enamel; bone; multivariate statistics
KeyWords Plus: X-RAY-EMISSION; TRACE-ELEMENTS; NUCLEAR MICROPROBE; ARTIFICIAL
MOUTH; SECONDARY CARIES; TARGET PIXE; IN-VITRO; ENAMEL; BONE; TISSUES
Addresses: Preoteasa EA (reprint author), Horia Hulubei Natl Inst Phys & Nucl Engn, POB MG-6,
Bucharest, 76900 Romania
Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, 76900 Romania
Middle E Tech Univ, Fac Sci, Dept Biol, Ankara, TR-06531 Turkey
Helident Dent Surg Ltd, Campina, 2150 Romania
Inst Biochem, Bucharest, 77700 Romania
E-mail Addresses: eugpre@ifin.nipne.ro
Publisher: SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG,
GERMANY
Subject Category: CHEMISTRY, ANALYTICAL; BIOCHEMICAL RESEARCH METHODS
IDS Number: 848NK
ISSN: 1618-2642
4. Title: Mossbauer acquisition system for Rayleigh scattering experiments
Author(s): Kluger A, Enescu SE, Bibicu I, Ciortea C, Enulescu A
Source: REVIEW OF SCIENTIFIC INSTRUMENTS 74 (6): 3035-3038 JUN 2003
Document Type: Article
Language: English
Cited References: 19 Times Cited: 0
1,07/5=0,214
2
Abstract: A data acquisition system is reported with a number of improvements over similar systems
currently used in Rayleigh scattering of Mossbauer radiation (RSMR) experiments. It is based on a data
acquisition board including a Mossbauer function generator with adjustable frequency reference signal
delivery, an internal single channel analyzer, and an internal 32 kB random access memory for data storage.
The system performances were tested in RSMR measurements on pyrolytic graphite C (002) single crystal
by using an iron enriched Fe-57 ( 30 at.%) in rhodium matrix absorber. We want to demonstrate that the
reported data acquisition system is suitable for the experimental separation of the elastic and inelastic
components of the scattered radiation. The system can be used also in the ordinary Mossbauer
measurements as a compact and rapid data acquisition system. In this case it presents the advantage of
including also the function generator. (C) 2003 American Institute of Physics.
KeyWords Plus: RADIATION RSMR; FIBERS
Addresses: Bibicu I (reprint author), Natl Inst Mat Phys, POB MG-7, Bucharest, 76900 Romania
Natl Inst Mat Phys, Bucharest, 76900 Romania
IFIN HH, Bucharest, 76900 Romania
Publisher: AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON
QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Subject Category: PHYSICS, APPLIED; INSTRUMENTS & INSTRUMENTATION
IDS Number: 683AG
ISSN: 0034-6748
5. Title: Inner-shell vacancy production and multiple ionization effects in 0.1-1.75 MeV/u Mn, Fe, Co,
Ni, Cu + Au, Bi collisions
Author(s): Ciortea C, Piticu I, Dumitriu DE, Fluerasu D, Enulescu A, Szilagyi SZ, Enescu SE, Gugiu MM,
Dumitrescu TA
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS 205: 789-793 MAY 2003
Cited References: 13 Times Cited: 0
(1) 1,14/9=0,127;
(2) 1,14/6,333=0,180
Abstract: Vacancy production in 0.1-1.75 MeV/u Mn, Fe, Co, Ni, Cu + Au, Bi collisions has been studied
by measuring integral inner-shell ionization cross-sections and mean outer-shell ionization probabilities at
the Tandem accelerator of NIPNE. Bucharest. X-ray spectra induced by ion beams of Mn, Fe, Co, Ni and
Cu impinging on thin solid-foil targets of An and Bi have been measured. Total ionization cross-sections
for the K-shell of the projectile and L-3-subshell of the target, as well as vacancy sharing probabilities,
corrected for the effect of multiple ionization, are reported. The experimental results are discussed in terms
of two model calculations. (C) 2003 Published by Elsevier Science B.V.
Author Keywords: inner-shell ionization; integral cross-section; vacancy sharing; X-ray spectrometry
KeyWords Plus: HEAVY-ION COLLISIONS; ATOM COLLISIONS
Addresses: Ciortea C (reprint author), Natl Inst Phys & Nucl Engn Horia Hulubei, Dept Nucl Phys, POB
MG-6, Bucharest, 76900 Romania
Natl Inst Phys & Nucl Engn Horia Hulubei, Dept Nucl Phys, Bucharest, 76900 Romania
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: 684MM
ISSN: 0168-583X
6. Title: Inner-shell vacancy production and mean charge states of MeV/u Fe, Co, Ni and Cu ions in
Au and Bi solid targets
Author(s): Ciortea C, Dumitriu D, Enescu SE, Enulescu A, Fluerasu D, Piticu I, Szilagyi ZS
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS 193: 109-112 JUN 2002
Cited References: 9 Times Cited: 1
(1) 1,14/7=0,163;
(2) 1,14/5,667=0,201
Abstract: The average charge states of 0.1-1.5 MeV/u Fe, Co, Ni and Cu ions in solid Au and Bi targets
have been determined, by estimating the mean numbers of outer-shell spectator vacancies during the Kvacancy decay. The latter quantities were obtained from the yield and energy shifts of the Kalpha, beta Xrays, by comparing with calculations in the independent electron approximation. The reported equilibrium
charges, mostly characteristic for the inside of the target, are in fairly agreement with Nikolaev and
3
Dmitriev semi-empirical formula [Phys. Lett. 28A (1968) 277]. (C) 2002 Elsevier Science B.V. All rights
reserved.
Author Keywords: average charge state; X-ray spectrometry; yield and energy shift
Addresses: Ciortea C (reprint author), Horia Nulubei Natl Inst Phys & Nucl Engn, Dept Phys Nucl, POB
Box MG-6, Bucharest, Romania
Horia Nulubei Natl Inst Phys & Nucl Engn, Dept Phys Nucl, Bucharest, Romania
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: 577HM
ISSN: 0168-583X
7. Title: Analysis of composites for restorative dentistry by PIXE, XRF and ERDA
Author(s): Preoteasa EA, Ciortea C, Constantinescu B, Fluerasu D, Enescu SE, Pantelica D, Negoita F,
Preoteasa E
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS 189: 426-430 APR 2002
Cited References: 16 Times Cited: 2
(1) 1,14/8=0,143;
(2) 1,14/6=0,190
Abstract: Composites used in dentistry bring into the organism elements that may induce adverse biological
effects. We applied 3 MeV proton particle-induced X-ray emission (PIXE) and photon-excited X-ray
fluorescence (XRF) in the qualitative analysis of 10 dental composites and we tested copper-beam elastic
recoil detection analysis (ERDA) on one material. PINE, and partly XRF, evidenced Si, K, Ca, Ti, V, Cr,
Fe, Mn, Ni, Cu, Zn, Sr, Ag, Zr, Cd, In, Ba, Yb, Y, Ho, Hf and Pb, many of them at trace levels. while
ERDA detected H. B, C, N, O, F, Na, Al and Si. (C) 2002 Elsevier Science B.V. All rights reserved.
Author Keywords: PIXE; XRF; ERDA; trace elements; biomaterials; composites; dentistry
Addresses: Preoteasa EA (reprint author), Horia Hulubei Natl Inst Phys & Nucl Engn, POB MG-6,
Bucharest, RO-76900 Romania
Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, RO-76900 Romania
Helident Ltd, Dent Surg Branch, Campina, RO-2150 Romania
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: 552AE
ISSN: 0168-583X
8. Title: Non-equilibrium L-shell vacancies in Fe, Co, Ni, and Cu plus Au collisions in solid targets
Author(s): Piticu I, Ciortea C, Enulescu A, Fluerasu D, Szilagyi SZ, Dumitriu D
Source: PHYSICA SCRIPTA T80B: 387-388 1999
Cited References: 2 Times Cited: 0
(1) 1,06/6=0,177;
(2) 1,06/5.333=0,199
Abstract: Mean ionization probabilities of the outer L- and M-shells in the projectiles (p(L) and p(M),
respectively), associated with the K-vacancy production in the collisions Fe, Co Ni, and Cu + An at 0.1-1.5
MeV/u bombarding energy, are reported. They have been obtained by using the energy and yield shift
method for the K X-ray lines. An interesting behavior of p(L) at lower (0.1-0.5 MeV/u) energies, which
suggests non-equilibrium L-shell vacancies, has been observed.
Addresses: Piticu I (reprint author), Horia Hulubei Natl Inst Phys & Nucl Engn, Dept Expt Phys, Tandem
Lab, POB MG-6, Bucharest, Romania
Horia Hulubei Natl Inst Phys & Nucl Engn, Dept Expt Phys, Tandem Lab, Bucharest, Romania
Publisher: ROYAL SWEDISH ACAD SCIENCES, PUBL DEPT BOX 50005, S-104 05 STOCKHOLM,
SWEDEN
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: 227RH
ISSN: 0281-1847
9. Title: Statistical approach of inner-shell ionization in 0.1-1.625 MeV/u Cu+Bi collisions
Author(s): Piticu I, Ciortea C, Enulescu A, Fleurasu D, Szilagyi SZ, Micu M, Dumitriu D
Source: PHYSICA SCRIPTA T80B: 389-390 1999
4
Cited References: 6 Times Cited: 1
(1) 1,06/7=0,151;
(2) 1,06/5,667=0,187
Abstract: Experimental data of inner-shell ionization cross sections and outer-shell ionization probabilities
per electron, obtained for the collision system. Cu + Bi in the energy range of 0.1-1.625 MeV/u, are in good
agreement with the predictions of the statistical model of Mittleman and Wilets. The found dependence of
the diffusion constant determined for different final vacancy states on the excitation (ionization) energy is
in fair agreement with the model prediction.
Addresses: Piticu I (reprint author), Horia Hulubei Natl Inst Phys & Nucl Engn, Dept Expt Phys, Tandem
Lab, POB MG-6, Bucharest, Romania
Horia Hulubei Natl Inst Phys & Nucl Engn, Dept Expt Phys, Tandem Lab, Bucharest, Romania
Publisher: ROYAL SWEDISH ACAD SCIENCES, PUBL DEPT BOX 50005, S-104 05 STOCKHOLM,
SWEDEN
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: 227RH
ISSN: 0281-1847
10. Title: Investigations towards evaluating the contribution of (alpha+Al, Si) interactions to fossil
tracks in muscovite mica track detectors
Author(s): Enulescu A, Ciortea C, Zoran V, Danis A, Ciubotariu M, Bucur BI, Marinescu L
Source: RADIATION MEASUREMENTS 28 (1-6): 555-558 Sp. Iss. SI, 1997
Cited References: 9 Times Cited: 0
(1) 0,60/7=0,086;
(2) 0,60/5,667=0,106
Abstract: In order to characterize the tracks in the muscovite mica detector generated by Al and Si nuclei
recoiling after the interaction with energetic alpha particles from the decay chains of the U and Th present
in the mineral as impurities, two experiments have been performed: (1) irradiation of the muscovite
detectors with 6, 9 and 12 MeV alpha particles produced by a Van de Graaff tandem accelerator, and (2)
exposures of the muscovite detectors to 8.8 MeV alpha particles from a Th chemical compound under
radioactive equilibrium. After irradiation, the muscovite detectors were chemically etched, and the tracks
studied by optical microscopy. Both experiments led to the conclusion that the recoiling nuclei from
interactions with high energy alpha particles have a track pattern which is different from those presented by
fission fragments or heavy ions from cluster radioactivity.
Author Keywords: muscovite mica track detector; etched tracks; recoiling nuclei; (alpha + Al, Si)
interactions
Addresses: Enulescu A (reprint author), Inst Phys & Nucl Engn, POB MG-6, Bucharest, R-76900 Romania
Inst Phys & Nucl Engn, Bucharest, R-76900 Romania
Publisher: PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE,
KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Subject Category: NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: YN136
ISSN: 1350-4487
11. Title: How well does the hidden crossing theory describe the K-L vacancy sharing in heavy
systems?
Author(s): Zoran V, Piticu I, Ciortea C, Szilagyi Z, Fluerascu D, Enulescu A, Dumitriu D, McDaniel FD,
Awaya Y
Source: PHYSICA SCRIPTA T73: 227-229 1997
Document Type: Article
Language: English
Cited References: 14 Times Cited: 0
(1) 1,06/9=0,118;
(2) 1,06/6,333=0,167
Abstract: The 3d sigma-2p(3/2) sigma vacancy sharing ratio has been measured for Fe and Co ions on Au
and Bi between 0.1-1.5 MeV/u. An almost quantitative description of the data by the hidden crossing
theory, developed for one-electron two-Coulomb-center systems, has been obtained when the cores of the
coupled states were approximated with effective charges inferred from the experiment.
KeyWords Plus: ION COLLISIONS
Addresses: Zoran V (reprint author), INST ATOM PHYS, POB MG-6, BUCHAREST, R-76900
ROMANIA
UNIV N TEXAS, DENTON, TX 76203 USA
RIKEN, INST PHYS & CHEM RES, WAKO, SAITAMA 35101 JAPAN
5
Publisher: ROYAL SWEDISH ACAD SCIENCES, PUBL DEPT BOX 50005, S-104 05 STOCKHOLM,
SWEDEN
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: YC884
ISSN: 0031-8949
12. Title: HEAVY-ION PARTICLE SPECTROMETRY BY TRACK PATTERN IN MUSCOVITE
DETECTORS
Author(s): ZORAN V, DANIS A, ENULESCU A, CIORTEA C, BUCUR B
Source: RADIATION MEASUREMENTS 25 (1-4): 77-78 1995
Cited References: 6 Times Cited: 0
0,60/5=0,120
Abstract: Muscovite mica detectors were irradiated with the ions: F-19 of 47.5 MeV, Mg-24 of 57 MeV,
Si-28 of 28 and 74 MeV, S-32 of 32 and 74 MeV, Cu-63 Of 78.75 MeV and with neutron induced uranium
fission fragments. Using optical microscopy, after an appropriate chemical etching, two characteristic
etched track structure patterns were observed: a rhombic pyramid terrace structure for the Mg, Si and S
ions, and a rhombic prism structure for the Cu ions and fission fragments. The use of these etched track
patterns to discriminate two groups of ions between them, for the energy range covered in this work, is
proposed.
Author Keywords: HEAVY ION TRACK DETECTION; ION TRACK SPECTROMETRY; ETCHED
TRACK STRUCTURE; CHEMICAL ETCHING
KeyWords Plus: NUCLEAR
Addresses: ZORAN V (reprint author), INST PHYS & NUCL ENGN, POB MG-6, BUCHAREST,
ROMANIA
Publisher: PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE,
KIDLINGTON, OXFORD, ENGLAND OX5 1GB
Subject Category: NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: RE480
ISSN: 1350-4487
13. Title: COUPLED CHANNEL TREATMENT OF THE L-SHELL IONIZATION IN ION ATOM
COLLISIONS
Author(s): LEGRAND IC, ZORAN V, DORNER R, SCHMIDTBOCKING H, BERINDE A, FLUERASU
D, CIORTEA C
Source: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 25 (1): 189-197
JAN 14 1992
Cited References: 45 Times Cited: 9
(3) (1) 9*0,3/7=0,386;
(3) (2) 9*0,3/5,667=0,476
Abstract: The deviations of the experimental L-subshell ionization probabilities relative to the semiclassical
approximation are discussed in terms of couplings between the target atomic states during the collision by
means of a relativistic one-centre coupled channel formalism with hydrogenic wavefunctions. Numerical
results are compared with experimental data for systems He + Pt, Ne + Pt, Ne + Yb at 0.9 MeV amu-1 and
S + Au at 1 MeV amu-1. A simple inclusion of the screening effect presented in this work yields a major
improvement in the description of the L-shell ionization probabilities. The intra-L-shell couplings modify
slightly the ionization probabilities for light projectiles but they have a marked effect for heavier
projectiles. The couplings between the L and M shells were also included, but they were found to have only
a small influence as compared with intra-L-shell couplings.
KeyWords Plus: IMPACT-PARAMETER DEPENDENCE; SUBSHELL IONIZATION; L3-SUBSHELL
ALIGNMENT; PROJECTILE-CHARGE; HEAVY-ELEMENTS; LIGHT-ION; PROBABILITIES
Addresses: LEGRAND IC (reprint author), INST ATOM PHYS, POB MG-6, BUCHAREST, ROMANIA
UNIV FRANKFURT, INST KERNPHYS, FRANKFURT, W-6000 1 GERMANY
Publisher: IOP PUBLISHING LTD, TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1
6NX
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; OPTICS
IDS Number: HA952
ISSN: 0953-4075
6
14. Title: COUPLED SUBSHELL DESCRIPTION OF THE L-SHELL IONIZATION IN
ASYMMETRIC ION-ATOM COLLISIONS
Author(s): LEGRAND IC, BERINDE A, CIORTEA C, ENULESCU A, FLUERASU D, PITICU I,
ZORAN V, SCHMIDTBOCKING H
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS 56-7: 21-25 Part 1, MAY 1991
Cited References: 24 Times Cited: 5
(3) (1) 5*0,3/8=0,188;
(3) (2) 5*0,3/6=0,250
Abstract: L-subshell ionization cross sections for collisions of Be, C, F, Mg, Si and S ions with Au and Th
in the energy range of 0.5-2.5 MeV/amu are calculated within the coupled subshell approximation and
compared to the experimental data. Fair agreement is obtained once the matrix elements of the projectile
perturbing potential are renormalized to account for the screening due to the target spectator electrons. The
present calculations provide the first consistent description of the direct Coulomb ionization and vacancy
sharing among the L-subshells during an asymmetric ion-atom collision. The remaining discrepancies
suggest further complexity inherent to such a process.
KeyWords Plus: HEAVY-ELEMENTS
Addresses: LEGRAND IC (reprint author), INST ATOM PHYS, POB MG-6, BUCHAREST, ROMANIA
UNIV FRANKFURT, INST KERNPHYS, FRANKFURT, W-6000 GERMANY
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: FQ888
ISSN: 0168-583X
15. Title: VACANCY SHARING AMONG THE TARGET L-SUBSHELLS IN ASYMMETRIC IONATOM COLLISIONS
Author(s): BERINDE A, LEGRAND IC, PITICU I, CIORTEA C, ENULESCU A, FLUERASU D,
ZORAN V
Source: REVUE ROUMAINE DE PHYSIQUE 33 (4-6): 393-400 1988
Cited References: 0 Times Cited: 4
(3) (1) 4*0,3/7=0,171;
(3) (2) 4*0,3/5,667=0,212
Abstract: The deviations of the experimental L-subshell ionization cross sections relative to the first order
pertubation theories are discussed in terms of vacancy transfer between the L-subshells during the collision,
by means of a two-step model in the impact parameter formulation. While the transitions into the
continuum are treated perturbatively, the coupling are treated exactly in a model space spanned by K-, Land M-, hydrogenic, target centered, relativistic wavefunctions. The central charge of the basis set is
varying with the internuclear distance, giving a correct asymptotic description of the colliding system. The
application of our model to recent experimental data results in substantial improvements of their
description as compared to the first order ionization theories.
Addresses: BERINDE A (reprint author), CENT INST PHYS, POB MG-6, BUCHAREST, R-76900
ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: P8951
ISSN: 0035-4090
16. Title: ON THE L-M-N MULTIPLE IONIZATION IN HEAVY-ELEMENTS
Author(s): BERINDE A, CIORTEA C, ENULESCU A, FLUERASU D, HOCK G, PITICU I, SARKADI
L, SULIK B, ZORAN V
Source: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 20 (15): L481L486 AUG 14 1987
Cited References: 18 Times Cited: 12
(3) (1) 12*0,3/9=0,400; (3) (2) 12*0,3/6.333=0,568
Abstract. The L x-ray spectra of Au and Th have been measured in collisions with C, F, Mg, Si, S and Cu
ions in the energy range 0.5-2.5 MeV amu-1. From the shifts of the yield ratios and energies of the L, L,
L and L lines relative to those for 2.5 MeV proton bombardment, the average numbers of M 4,5 (and N4)
vacancies present during the L-vacancy decay have been determined. The corresponding outer-shell
7
ionisation probabilities show remarkable agreement with the geometrical model of Sulik et al, except for
the Cu projectile.
Addresses: BERINDE A (reprint author), CENT INST PHYS, POB MG-6, BUCHAREST, R-76900
ROMANIA
HUNGARIAN ACAD SCI, INST NUCL RES, DEBRECEN, H-4010 HUNGARY
Publisher: IOP PUBLISHING LTD, TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1
6NX
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; OPTICS
IDS Number: J5752
ISSN: 0953-4075
17. Title: DEPENDENCE OF THE K X-RAY YIELD ON TARGET THICKNESS IN THE S + Ge
COLLISION SYSTEM
Author(s): BADICA T, CIORTEA C, POPESCU I
Source: X-RAY SPECTROMETRY 15 (2): 107-109 APR 1986
Cited References: 18 Times Cited: 1
1,12/3=0,373
Abstract: Measurements of the target-thickness dependence of the target K x-ray production yields are
reported for 1 and 2 MeV/amu Sq+ (q = 6 and 8) ions incident upon thin solid targets of Ge. Target K x-ray
production cross-sections were extracted in the limit of vanishing target thickness. Comparisons of the data
with theoretical estimates based on combinations of direct ionization and electron-transfer processes are
presented.
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB MG6, BUCHAREST,
ROMANIA
Publisher: JOHN WILEY & SONS LTD, BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND
PO19 1UD
Subject Category: SPECTROSCOPY
IDS Number: C0173
ISSN: 0049-8246
18. Title: Au L-SHELL IONIZATION BY Si AND S IONS - INTEGRAL AND DIFFERENTIAL
CROSS-SECTIONS AND ALIGNMENT
Author(s): BERINDE A, CIORTEA C, ENULESCU A, FLUERASU D, PITICU I, ZORAN V,
TRAUTMANN D
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS 232 (2): 283-291 1984
Cited References: 40 Times Cited: 3
(1) 1,14/7=0,163;
(2) 1,14/5.667=0,201
Abstract: We present the following experimental results on Au L-shell ionization: (1) in the bombarding
energy range 0.25—2.5 MeV/u, absolute X-ray yields and the L3-vacancy integral alignment for Si, and
cross section ratios σ2/σ3 for Si and S as projectiles; (2) MeV sulphur energy, subshell ionization
probability ratios and the components A20(b) and A22(b) of the statistical tensor descr the L3-vacancy for
impact parameters b = 20–450 fm. A comparison of the data to SCA calculations reveals, except perhaps
for the differential alignment, important discrepancies relative to the theoretical predictions. These
discrepancies, increasing at lower projectile velocities, are most probable due to the mutual L-subshell
coupling, as well as to the rotational coupling between the L3 magnetic substates during the collision.
Addresses: BERINDE A (reprint author), INST PHYS & NUCL ENGN, POB MG6, BUCHAREST,
ROMANIA
UNIV BASEL, INST PHYS, BASEL, CH-4056 SWITZERLAND
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: TC476
ISSN: 0168-583X
19. Title: PIXE AND NEUTRON-ACTIVATION METHODS IN HUMAN-HAIR MATERIAL
ANALYSIS
8
Author(s): BADICA T, CIORTEA C, COJOCARU V, IVASCU M, PETROVICI A, POPA A, POPESCU
I, SALAGEAN M, SPIRIDON S
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS 231 (1-3): 288-290 1984
Cited References: 6 Times Cited:4
(3) (1) 4*0,3/9= 0,133
(3) (2) 4*0,3/6,333=0,189
Abstract: In order to compare some of the nuclear methods in human hair material analysis, proton induced
X-ray excitation and variant techniques of neutron activation analysis have been used. The elemental
concentrations are compared with the IAEA-Vienna certified values. The efficiency and reliability of the
methods used are briefly discussed.
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB MG6, BUCHAREST,
ROMANIA
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR;
INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: SZ553
ISSN: 0168-583X
20. Title: MAGNETIC-MOMENT MEASUREMENTS IN Zn-64 AND Zn-66
Author(s): BADICA T, CIORTEA C, PANTELICA D, PETROVICI A, POPESCU I
Source: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI 314 (1): 55-58 1983
Cited References: 14 Times Cited: 0
1,54/5=0,308
Abstract: The ratios of the g-factors of the 7-, 4.635 MeV level in 64Zn and 6-, 4.074 MeV and 7-, 4.250
MeV levels in 66Zn has been found to be (1±0.18):(0.64±0.14):(0.60±0.12) by means of the recoil-into-gas
(helium) integral perturbed angular correlation technique. The studied states were populated by the
reactions 51V(16O,p2n)64Zn at EO=51 MeV and 55Mn(14N,2pn)66Zn at EN=54 MeV.
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB MG6, BUCHAREST,
ROMANIA
Publisher: SPRINGER VERLAG, 175 FIFTH AVE, NEW YORK, NY 10010
Subject Category: PHYSICS, NUCLEAR; PHYSICS, PARTICLES & FIELDS
IDS Number: RU360
ISSN: 0939-7922
21. Title: K-X-RAY PRODUCTION CROSS-SECTIONS OF Ag, Sn AND Te BY 32-80 MeV S-32
IONS
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I, OSIPENKO BP
Source: X-RAY SPECTROMETRY 12 (4): 173-174 1983
Cited References: 21 Times Cited: 1
1,12/5=0,224
Abstract: K x-ray production cross-sections of Ag, Sn and Te by 32-80 MeV 32S ions have been measured.
The dependence of target K x-ray yields on the target thickness was found to be negligible in the S (64
MeV) + Ag collision system. The experimental data are compared with some theoretical predictions.
Addresses: BADICA T (reprint author), INST NUCL PHY & ENGN, POB MG6, BUCHAREST,
ROMANIA
DUBNA JOINT NUCL RES INST, DUBNA, USSR
Publisher: JOHN WILEY & SONS LTD, BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND
PO19 1UD
Subject Category: SPECTROSCOPY
IDS Number: RN582
ISSN: 0049-8246
22. Title: REACTION CHAMBER FOR MAGNETIC-MOMENT MEASUREMENTS BY THE
RECOIL-INTO-GAS METHOD
Author(s): BADICA T, CIORTEA C, DIMA S, PETROVICI A, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 28 (1): 25-27 1983
Cited References: 4 Times Cited: 2
2*0,3/5=0,120
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB MG6, BUCHAREST,
ROMANIA
9
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: QG880
ISSN: 0035-4090
23. Title: FOIL THICKNESS DEPENDENCE OF Ni K-ALPHA-X-RAY PRODUCTION FOR 1.5
MeV/amu SULFUR IONS
Author(s): BADICA T, CIORTEA C, ENULESCU A, PETROVICI A, PITICU I, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 27 (8): 737-740 1982
Cited References: 12 Times Cited: 1
(3) (1)1* 0,3/6=0,050;
(3) (2) 1*0,3/5,333=0,056
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB 5206, BUCHAREST,
ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: PM364
ISSN: 0035-4090
24. Title: GYROMAGNETIC FACTORS OF NEGATIVE-PARITY STATES IN Ge-68
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I
Source: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 8 (10): 1397-1403 1982
Cited References: 15 Times Cited: 3
1,30/4=0,325
Abstract: The g factors of the 7-, 4.054 MeV and 6-, 3.883 MeV states in 68Ge measured by the recoil-intogas perturbed angular correlation technique (and from a comparison with a calibration measurement) was
found to be 0.122+or-0.029 and 0.096+or-0.025 respectively. The states studied were populated by the
reaction 58Ni(12C, 2p)68Ge at Ec=40 MeV. The 21+ level in 74Ge involved in the calibration measurement
was populated by Coulomb excitation using a beam of 45 MeV 16O ions.
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB, MG6, BUCHAREST,
ROMANIA
Publisher: IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL, ENGLAND BS1 6BE
Subject Category: PHYSICS, NUCLEAR; PHYSICS, PARTICLES & FIELDS
IDS Number: PH759
ISSN: 0954-3899
25. Title: X-RAY-EMISSION BY CHARGED-PARTICLE BOMBARDMENT - SUMMARY OF
THE ACTIVITY FOR THE AIEA-VIENNA RESEARCH CONTRACT No. 1320/RB
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 26 (7): 653-671 1981
Cited References: 38 Times Cited: 1
(3) 1*0,3/4=0,075
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, BUCHAREST, ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: MR150
ISSN: 0035-4090
26. Title: PIXE ANALYSIS METHOD APPLIED TO THE STUDY OF SOME SERUM TRACEELEMENTS IN RELATION TO AGE, SEX AND PATHOLOGICAL RECORD
Author(s): BADICA T, BRAZDES L, CIORTEA C, PETROVICI A, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 26 (3): 319-324 1981
Cited References: 19 Times Cited: 0
0,21/5=0,042
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB 5206, BUCHAREST,
ROMANIA
NATL INST GERONTOL & GERIATR, BUCHAREST, ROMANIA
10
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: LR096
ISSN: 0035-4090
27. Title: X-RAY-PRODUCTION BY 11-27 MeV ALPHA-PARTICLES
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I
Source: X-RAY SPECTROMETRY 8 (4): 186-189 1979
Cited References: 20 Times Cited: 2
1,12/4=0,230
Abstract: K X-ray prodution cross-sections for S, Cl, K, Ni, Cu, Ga, Br, Ag and Cs and total L X-ray
production cross-sections for Cs, W and Pb using -particles of 11, 16, 21 and 27 MeV energy have been
measured. The present results, combined with some earlier measurements, were compared with the
theoretical predictions of the plane-wave Born approximation (PWBA), binary encounter approximation
(BEA) and perturbed stationary state (PSS) approximation.
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, POB 5206, BUCHAREST,
ROMANIA
Publisher: JOHN WILEY & SONS LTD, BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND
PO19 1UD
Subject Category: SPECTROSCOPY
IDS Number: JC637
ISSN: 0049-8246
28. Title: LOW-LYING ENERGY-LEVELS IN Ho-166
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I
Source: NUCLEAR PHYSICS A 331 (1): 75-80 1979
Cited References: 15 Times Cited: 2
2,2/4=0,550
Abstract: The properties of some low-excited states of 166Ho have been studied using thin, high resolution
Ge detectors. The relative intensities of γ-lines were determined. The directional angular correlation
measurements for the 28.23–54.24 keV cascade are in agreement with the 1−(M1)2−(E2)0− spin sequence.
The magnetic moment μ = 0.068 ± 0.010 μN of the 54.24 keV level was determined by integral perturbed
angular correlation (IPAC) in an external magnetic field. This value can be explained by the configuration
mixing due to the Coriolis interaction.
Author Keywords: Radioactivity
Addresses: BADICA T (reprint author), INST NUCLEAR PHYS & ENGN, POB 5206, BUCHAREST,
ROMANIA
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, NUCLEAR
IDS Number: HV637
ISSN: 0375-9474
29. Title: X-RAY PRODUCTION BY 4 MeV PROTONS
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 23 (9): 1019-1022 1978
Cited References: 13 Times Cited: 4
(3) 4*0,3/4=0,300
Abstract: K-shell X-ray production cross sections for S, K, Ni, Cu, Ga, Br, Ag and Cs and L-shell X-ray
production cross sections for Ag, Cs and W induced by 4 MeV protons have been determined. Results have
been compared with the predictions of the plane-wave Born approximation PWBA) and binary encounter
approximation (BEA).
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, BUCHAREST, ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: FX957
ISSN: 0035-4090
11
30. Title: ABSORPTION-EDGE METHOD OF CHARACTERISTIC FILTERS IN TRACEELEMENT ANALYSIS BY CHARGED-PARTICLE INDUCED X-RAYS
Author(s): BADICA T, CIORTEA C, PETROVICI A, POPESCU I
Source: NUCLEAR INSTRUMENTS & METHODS 156 (3): 537-540 1978
Cited References: 6 Times Cited: 2
1,14/4=0,285
Abstract: A proton induced X-ray quantitative analysis of trace elements not detectable in common
experimental conditions due to the matrix elements was carried out by using the absorption-edge
characteristic filters. The concentrations of scandium and chromium close to the strong peaks of
neighbouring potassium and iron elements were measured in a mouse marrow sample.
Addresses: BADICA T (reprint author), INST NUCL PHYS & ENGN, BUCHAREST, ROMANIA
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: NUCLEAR SCIENCE & TECHNOLOGY
IDS Number: FX369
ISSN: 0029-554X
31. Title: RECOIL INTO VACUUM g-FACTOR MEASUREMENT OF 5/2+ STATE AT 0.350 MeV
IN Ne-21
Author(s): ANGHELESCU A, AVRIGEANU V, BODO E, CIORTEA C, CONSTANTINESCU B,
DAVID I, OSICEANU P, PANTELICA D, PETROVICI A, PETROVICI M, VAJDA S, ZAHARCU M
Source: HYPERFINE INTERACTIONS 4 (1-2): 190-193 1978
Cited References: 2 Times Cited: 0
(1) 0,75/12=0,063;
(2) 0,75/7,333=0,102
Addresses: ANGHELESCU A (reprint author), INST NUCL PHYS & ENGN, BUCHAREST, ROMANIA
Publisher: KLUWER ACADEMIC PUBL, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT,
NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, CONDENSED
MATTER; PHYSICS, NUCLEAR
IDS Number: EP750
ISSN: 0304-3843
32. Title: MAGNETIC-MOMENT MEASUREMENT OF 129.2 keV LEVEL IN Gd-153
Author(s): BADICA T, BOGDAN D, CIORTEA C, DIMA S, PETROVICI A, POPESCU I
Source: HYPERFINE INTERACTIONS 3 (4): 423-427 1977
Cited References: 13 Times Cited: 2
(1) 0,75/6=0,125;
(2) 0,75/5.333=0,141
Abstract: The magnetic moment =(0.37±0.07)N of the 129.2 keV level in 153Gd was determined from
mesdurements of the integral perturbed angular correlation (IPAC) in external field.
Addresses: BADICA T (reprint author), INST ATOM PHYS, BUCHAREST, 35 ROMANIA
Publisher: BALTZER SCI PUBL BV, ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, CONDENSED
MATTER; PHYSICS, NUCLEAR
IDS Number: EH606
ISSN: 0304-3843
33. Title: PROPERTIES OF 635.4 keV LEVEL IN Tm-171
Author(s): BADICA T, CIORTEA C, DIMA S, PETROVICI A, POPESCU I
Source: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI 284 (2): 161-163 1978
Cited References: 12 Times Cited: 1
1,54/5=0,308
Abstract: The properties of some high excited states of 171Tm have been studied using Ge(Li) detectors.
The directional angular correlation measurements for 277.4-210.5 cascade are in agreement with the spins
of the 635.4 keV (7/2) and 912.8 keV (5/2) levels. The magnetic moment =(1.15±0.21)N of the 635.4
keV level was determined by integral perturbed angular correlation (IPAC) in external field.
Addresses: INST NUCL PHYS & ENGN, BUCHAREST, ROMANIA
Publisher: SPRINGER VERLAG, 175 FIFTH AVE, NEW YORK, NY 10010
Subject Category: PHYSICS, NUCLEAR; PHYSICS, PARTICLES & FIELDS
IDS Number: ED999
ISSN: 0939-7922
12
34. Title: TRACE DETERMINATION OF HEAVY-METAL CONCENTRATIONS IN FAUNA,
FLORA AND SALT SAMPLES FROM BLACK SEA WATERS BY CHARGED-PARTICLES INDUCED X-RAYS
Author(s): BADICA T, CIORTEA C, DIMA S, PETROVICI A, POPESCU I, SERBANESCU O
Source: REVUE ROUMAINE DE PHYSIQUE 22 (7): 755-762 1977
Cited References: 11 Times Cited: 1
(3) (1) 1*0,3/6=0,050;
(3) (2) 1*0,3/5,333=0,056
Abstract: Studies were performed on Black See pollution by charged particles induced x-rays spectra
analysis, using alpha and 16O beams. Fauna, flora and salt samples were analysed. We found some of the
concentrations of pollutant elements to be below the accepted levels.
Addresses: INST PHYS & NUCL ENGN, BUCHAREST, ROMANIA
NATL INST MARINE RES, CONSTANTZA, ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: EF152
ISSN: 0035-4090
35. Title: HYPERFINE INTERACTIONS IN HIGHLY IONIZED NE-21 ATOMS AND
MAGNETIC-MOMENT OF 5/2+ STATE AT 0.350 MeV
Author(s): ANGHELESCU A, AVRIGEANU V, BODO E, CIORTEA C, CONSTANTINESCU B,
DAVID I, OSICEANU P, PANTELICA D, PETROVICI A, PETROVICI M, VAJDA S, ZAHARCU M
Source: REVUE ROUMAINE DE PHYSIQUE 22 (8): 859-868 1977
Cited References: 20 Times Cited: 0
(1) 0,21/12=0,018;
(2) 0,21/7,333=0,029
Addresses: INST NUCL PHYS & ENGN, BUCHAREST, ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: EF153
ISSN: 0035-4090
36. Title: ENERGY CALIBRATION OF INSTITUTE FOR ATOMIC PHYSICS TANDEM
ACCELERATOR
Author(s): CIORTEA C, CONSTANTINESCU B, DOBRESCU S, PETRASCU M
Source: STUDII SI CERCETARI DE FIZICA 29 (4): 315-321 1977
Cited References: 5 Times Cited: 0
0,08/4=0,020
Addresses: INST CENT FIZ BUCHAREST, BUCHAREST, ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: DH166
ISSN: 0039-3940
37. Title: X-RAY PRODUCTION BY 5.2-27 MeV ALPHA-PARTICLES
Author(s): BADICA T, CIORTEA C, DIMA S, PETROVICI A, POPESCU I, NEACSU V
Source: X-RAY SPECTROMETRY 6 (2): 90-93 1977
Cited References: 17 Times Cited: 6
(3) (1) 6*0,3/6=0,300;
(3) (2) 6*0,3/5,333=0,338
Abstract: K-shell ionization cross-sections for Ni, Cu, Ge, Ag and Sn and L-shell ionization cross-sections
for Sn, Au and Pb induced by particles have been determined at 5.2, 16.5 and 27 MeV. Results have been
compared with the predictions of the plane-wave Born approximation (PWBA) and binary encounter
approximation (BEA).
Addresses: INST ATOM PHYS, BUCHAREST, 35 ROMANIA
ROMANIAN OPT IND, BUCHAREST, ROMANIA
Publisher: JOHN WILEY & SONS LTD, BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND
PO19 1UD
Subject Category: SPECTROSCOPY
IDS Number: DC999
13
ISSN: 0049-8246
38. Title: GAMMA-GAMMA ANGULAR-CORRELATIONS IN Sm-151
Author(s): BADICA T, CIORTEA C, DIMA S, PETROVICI A, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 21 (10): 1059-1064 1976
Cited References: 18 Times Cited: 0
0,21/5=0,042
Addresses: INST ATOM PHYS, BUCHAREST, 35 ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: CP700
ISSN: 0035-4090
39. Title: MAGNETIC-MOMENT MEASUREMENT OF 108 keV LEVEL IN Gd-151
Author(s): BADICA T, BOGDAN D, CIORTEA C, DIMA S, PETROVICI A, POPESCU I, GROMOVA
II
Source: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI 277 (3): 217-219 1976
Cited References: 12 Times Cited: 1
(1) 1,54/7=0,220;
(2) 1,54/5,667=0,272
Abstract: The magnetic moment  = -(1.23±0.17)N of the first excited state in 151Gd was determined by
integral perturbed angular correlation (IPAC) in external field.
Addresses: INST FIZ ATOM, BUCHAREST, 35 ROMANIA
DUBNA JOINT NUCL RES INST, NUCL PROB LAB, DUBNA, USSR
Publisher: SPRINGER VERLAG, 175 FIFTH AVE, NEW YORK, NY 10010
Subject Category: PHYSICS, NUCLEAR; PHYSICS, PARTICLES & FIELDS
IDS Number: BW431
ISSN: 0939-7922
40. Title: TRACE-ELEMENT ANALYSIS BY CHARGED PARTICLE-INDUCED X-RAYS
Author(s): BADICA T, CIORTEA C, CONSTANTINESCU F, PETROVICI A, POPESCU I
Source: REVUE ROUMAINE DE PHYSIQUE 20 (6): 625-635 1975
Cited References: 16 Times Cited: 8
(3) 8*0,3/5=0,480
Abstract: Using 20 MeV alpha particles we have performend some studies of water pollution, biological
tissues and technology of ferrites.
Addresses: INST ATOM PHYS, BUCHAREST, ROMANIA
Publisher: EDITURA ACADEMIEI ROMANE, CALEA VICTORIEI 125, BUCHAREST 79717,
ROMANIA
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: BB710
ISSN: 0035-4090
41. Title: MAGNETIC-MOMENT OF 828 keV LEVEL IN In-115
Author(s): BADICA T, CIORTEA C, DIMA S, GELBERG A, PETROVIC.A, POPESCU I
Source: NUCLEAR PHYSICS A A222 (1): 168-172 1974
Cited References: 12 Times Cited: 5
(1) 2,2/6=0,367;
(2) 2,2/5,333=0,413
Abstract: The magnetic moment of the 828 keV level in 115In was found to be 0.80 ± 0.14 μN by measuring
the γ-γ integral angular correlation perturbed by an external magnetic field. Several assumptions
concerning the nature of the state investigated have been discussed.
Author Keywords: Radioactivity
Addresses: INST ATOM PHYS, BUCHAREST, ROMANIA
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category: PHYSICS, NUCLEAR
IDS Number: S7420
ISSN: 0375-9474
42. Title: ANGULAR CORRELATIONS IN 115In
Author(s): T. Bãdicã, A. Gelberg, S. Dima, I. Popescu, C. Ciortea
14
Source: Yad. Fiz. 17(4), 655 (1973) (in Russian)
Cited References: 18 Times Cited: 0
0,32/5=0.064
Abstract: Angular correlation measurements of the transitions in 115In were carried out with Si(Li), Ge(Li)
and scintillation detectors. The spin ½ was determined for 864 keV level.
43. Title: MAGNETIC-MOMENT MEASUREMENT IN Te-125 BY IPAC
Author(s): BADICA T, VATA I, DIMA S, POPESCU I, CIORTEA C, GELBERG A
Source: ZEITSCHRIFT FUR PHYSIK 255 (5): 390-& 1972
Cited References: 18 Times Cited: 0
(1) 1,34/6=0,223;
(2) 1,34/5,333=0,251
Abstract: The magnetic moment of the 35.5 keV (3/2+) excited state in 125Te was measured in an external
magnetic field. The value obtained =0.57±0.07N agrees with Mössbauer determinations and KisslingerSorensen calculations.
Publisher: SPRINGER VERLAG, 175 FIFTH AVE, NEW YORK, NY 10010
Subject Category: PHYSICS, MULTIDISCIPLINARY
IDS Number: O1366
______________________________________
n
Punctaj total la lista nr. 1:
I 
i 1
(1)
(2)
(3)
qi
ai
= 8,296*1,1 (lucrări experimentale) = 9,126
= 9,442 *1,1 (lucrări experimentale) = 10,386
ai = N, unde N = numărul de autori;
ai = (N+10)/3 , pentru N > 5
I = 0,30 Nc / a , unde Nc = numărul de citări
Punctaj total pentru listele nr. 1 – 5:
(1)
(2)
15
9,898
11,341
(1)
(2)