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8 results on '"J. C. Putaux"'

1. Exotic beams produced by fast neutrons

Author

F. Clapier, A. C. Mueller, J. Obert, O. Bajeat, M. Ducourtieux, A. Ferro, A. Horbowa, L. Kotfila, C. Lau, H. Lefort, S. Kandri-Rody, N. Pauwels, J. C. Potier, J. Proust, J. C. Putaux, C. F. Liang, P. Paris, A. C. C. Villari, R. Lichtenthäler, L. Maunoury, and J. Lettry

Subjects
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

First results from the research and development program PARRNE (Production d'Atomes Radioactifs Riches en NEutrons) are presented. Its aim is the investigation of the optimum conditions for the production of neutron-rich fission fragment beams extracted from thick targets irradiated by fast neutrons.

Published
1998
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2. Low-spin states of doubly odd 182Au

Author

J. C. Putaux, J. Sauvage, R. Béraud, P. Kilcher, G. Cata-Danil, C. Richard-Serre, J. Oms, G. Marguier, B. Roussière, A. Gizon, J. Obert, Nicole Collaborations, A. Knipper, J. Genevey, A. Wojtasiewicz, F. Le Blanc, F. Ibrahim, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), ISOLDE, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Spin states, 010308 nuclear & particles physics, Electron spectra, Hadron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Coincidence, Spectral line, 0103 physical sciences, Quasiparticle, Nuclear fusion, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract

Low-spin states of 184Au have been studied using the β+/EC decay of 184Hg. γ-ray and conversion-electron singles spectra were recorded with 184Hg mass-separated sources. For γ-γ-t and X-γ-t coincidence measurements, mercury nuclei were produced in the 148Sm + 40Ar reaction and transported by a He-jet system. The electron spectra were recorded from 184Hg sources produced at ISOLDE. A level scheme of 184Au including 48 transitions is proposed. The experimental results are interpreted in the frame of a semi-microscopic axial-rotor-plus-two-quasiparticle model developed in the context of the HF+BCS approximation.

Published
2001
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3. The combined use of a singly charged ion beam and undulator radiation for photoelectron spectrometry studies on atomic ions

Author

M. Richter, F. Wuilleumier, J. Obert, D. Cubaynes, J. C. Putaux, J. M. Bizau, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Robert, Suzanne

Subjects
Physics, Ion beam, Photoemission spectroscopy, Bremsstrahlung, Photoionization, Undulator, Photon energy, 01 natural sciences, 7. Clean energy, Charged particle, 010305 fluids & plasmas, X-ray photoelectron spectroscopy, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 0103 physical sciences, Physics::Atomic and Molecular Clusters, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Atomic physics, 010306 general physics, Instrumentation
Abstract

We present the first photoelectron spectrometry experiment on a singly charged ion beam. Taking advantage of the high photon flux emitted in the undulator SU6 of Super‐ACO, we have measured photoelectron spectra produced in the resonant photoionization of Ca+ ions at 33.2‐eV photon energy. The success of this experiment depended strongly on the photon flux available. We demonstrate the capability of photoelectron spectrometry to precisely calibrate the photon spectrum emitted in the undulator.

Published
1992
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4. First observation of photoelectron spectra emitted in the photoionization of a singly charged-ion beam with synchrotron radiation

Author

A Damany, J. Obert, J. C. Putaux, S Sorensen, E Källne, F. J. Wuilleumier, Denis Cubaynes, Marten Richter, Jean-Marc Bizau, Thomas J. Morgan, Institut de Physique Nucléaire d'Orsay (IPNO), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, 010304 chemical physics, Ion beam, Auger effect, Photoemission spectroscopy, Photoionization mode, General Physics and Astronomy, Synchrotron radiation, Photoionization, Photon energy, Undulator, 01 natural sciences, 7. Clean energy, symbols.namesake, 0103 physical sciences, Physics::Atomic and Molecular Clusters, symbols, Physics::Accelerator Physics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Physics::Atomic Physics, Atomic physics, 010306 general physics
Abstract

The first measurement of photoelectron spectra emitted in the photoionization of a singly charged-ion beam by synchrotron radiation is reported. A Ca + -ion beam is resonantly photoionized by the monochromatized photon beam of the SU6 undulator of the SuperACO Storage Ring at 33.20 eV photon energy. The values observed for the kinetic energy and for the intensity of the photoelectron line are in good agreement with the predicted values. The success of this feasibility experiment opens up wide opportunities for similar photoionization and Auger studies on multiply charged ions

Published
1991
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5. Photoelectron spectroscopy experiments on singly charged positive-ions using synchrotron radiation

Author

Christophe P. Blancard, S. Al Moussalami, J. C. Putaux, E. Bouisset, B. Rouvellou, F. J. Wuilleumier, Loic Journel, Jean-Marc Bizau, C. Vinsot, J. Obert, N. Berland, S. Diehl, Denis Cubaynes, Institut de Physique Nucléaire d'Orsay (IPNO), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Nuclear and High Energy Physics, Photon, Chemistry, Astrophysics::High Energy Astrophysical Phenomena, Ionic bonding, Synchrotron radiation, Undulator, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, Ion, High flux, X-ray photoelectron spectroscopy, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Atomic physics, 010306 general physics, Instrumentation
Abstract

The first angle-resolved photoelectron spectroscopy experiments on singly charged ions using synchrotron radiation are described. The feasibility of these experiments has been demonstrated for resonant photoionisation of Ca+ ions by use of the high flux of photons available from an undulator. These experiments open new opportunities for the detailed study of photoionisation processes in ionic species.

Published
1998

6. First angle-resolved photoelectron measurements following inner-shell resonant excitation in a singly charged ion

Author

Thomas J. Morgan, J. Obert, Loic Journel, F. J. Wuilleumier, J. C. Putaux, S. Al Moussalami, Mathias Richter, B. Rouvellou, Denis Cubaynes, and Jean-Marc Bizau

Subjects
Physics, Autoionization, Ionization, Giant resonance, General Physics and Astronomy, Resonance, Electron, Atomic physics, Coupling (probability), Kinetic energy, Ion
Abstract

We have measured the angular distribution of electrons emitted in the autoionization of the giant resonance 3{ital p}{sup 6}4{ital s}{sup 2}{ital S}{r_arrow}[{beta}{ital p}{sup 5}3{ital d}{sup 1}({ital P})4{ital s}]{sup 2}{ital P} in Ca{sup +} ions over the profile of the resonance. The absolute value of the asymmetry parameter we have determined at the top of the resonance is {beta}=1.89{plus_minus}0.13, suggesting that {ital LS} coupling remains a good approximation for the description of this ionic resonance. {copyright} {ital 1996 The American Physical Society.}

Published
1996

7. Selective on-line separation of new Ta, Zr and Sr isotopes

Author

J. Obert, P. Paris, C.F. Liang, S. Della Negra, J. C. Putaux, D. Bucurescu, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Nuclear and High Energy Physics, Zirconium, Strontium, Materials science, Isotope, 010308 nuclear & particles physics, Radiochemistry, Tantalum, chemistry.chemical_element, Separator (oil production), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 3. Good health, chemistry, 0103 physical sciences, Nuclear fusion, 010306 general physics
Abstract

Tantalum 164 to 167, Zirconium 82 to 84 and Strontium 78 have been selectively observed at the ISOCELE-2 on-line mass separator (1) in the TaF4+, ZrF3+ and SrF+ compound form. New isotopes have been identified:165Ta (31.0±1.5 s),164Ta (13.7±0.6 s),82Zr, (32±5 s) and78Sr (2.5±0.3 mn).

Published
1982

8. On-line separation of163Ta and162Ta

Author

M. G. Porquet, C.F. Liang, P. Paris, J. C. Putaux, J. Obert, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Nuclear and High Energy Physics, Materials science, Isotope, 010308 nuclear & particles physics, Separation (aeronautics), Analytical chemistry, Elementary particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 3. Good health, chemistry.chemical_compound, chemistry, 0103 physical sciences, Nuclear fusion, 010306 general physics, Fluoride, Line (formation)
Abstract

By on-line selective separation on molecular fluoride compounds at the ISOCELE 2 facility, two new isotopes:163Ta (T1/2=10.5+-1.8s) and162Ta (T1/2=3.5+-0.2s) have been identified.

Published
1985
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