Zobrazeno 1 - 10 of 225 pro vyhledávání: '"C. Poizat"'
1
Impact parameter dependent electron capture by decelerated U 91+ ions at 20 MeV/u using crystal channeling conditions
Autor: P. H. Mokler, Cédric Ray, M. Tarisien, Th. Stöhlker, A. L'Hoir, R. Kirsch, Etienne Testa, Marius Chevallier, Christophor Kozhuharov, Denis Dauvergne, F. Bosch, A. Gumberidze, A. Bräuning-Demian, S. Toleikis, Marcel Toulemonde, J.-C. Poizat, H. Bräuning, C. Cohen, Dieter Liesen
Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research B
International Conference on Highly Charged Ions
International Conference on Highly Charged Ions, Sep 2002, Caen, France. pp.773
We present results of an experiment using decelerated U91+ ions, extracted from the GSI-ESR storage ring, and transmitted through a thin silicon crystal in channeling conditions. Charge state at emergence, secondary electron multiplicity and X-rays a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::765d4914639c1181f89eb681fd1a62c6
https://doi.org/10.1016/s0168-583x(03)00541-x
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2
Experiment with a crystal-assisted positron source using 6 and 10 GeV electrons
Autor: V. Golubev, P. Keppler, A. Jejcic, L. Gatignon, A. Bozhenok, J.-C. Poizat, G. L. Bochek, R. Kirsch, V. Strakhovenko, S. Burdin, V. Druzhinin, Denis Dauvergne, X. Artru, A. Drozdetsky, M. Dubrovin, A. Bogdanov, M. Chevallier, I. E. Vnukov, P. Lautesse, J. Major, R. Chehab, V. Baier, J. Remillieux, S. Serednyakov, N. I. Maslov, V. V. Shary, T. Dimova, R. Cizeron, A. Potylitsin, V. Kulibaba, K. Beloborodov, C. Sylvia, A. Bukin
Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2003, 201, pp.243-252. ⟨10.1016/S0168-583X(02)01180-1⟩
Axially oriented crystals, penetrated by high-energy electrons, are powerful photon sources and, hence, intense positron sources. Such kinds of positron sources have been studied experimentally at CERN, with the tertiary electron beam of the SPS havi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::905d9fc391dd26ceeb4c88489c78aba3
https://doi.org/10.1016/s0168-583x(02)01180-1
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4
High energy channelling and the experimental search for the internal clock predicted by Louis de Broglie
Autor: J. Krimmer, Yuichi Takabayashi, R. Kirsch, Etienne Testa, Marius Chevallier, Denis Dauvergne, Catalina Curceanu, X. Artru, S.B. Dabagov, M. Gouanère, H. Guérin, R. Chehab, J. Remillieux, Cédric Ray, J.-C. Poizat, M. Bajard
Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
6th International Conference “Channeling 2014: Charged & Neutral Particles Channeling Phenomena”
6th International Conference “Channeling 2014: Charged & Neutral Particles Channeling Phenomena”, Oct 2014, Capri, Italy. pp.193-197, ⟨10.1016/j.nimb.2015.02.005⟩
International audience; This paper gives a short review of the past and recent activities of the Atomic Collisions in Solids Lyon-group, in collaboration with other groups, in the field of high energy channelling. The ion-channelling programme was pe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e1add8eca54955bb3eb79d5b6f1eda7
http://hal.in2p3.fr/in2p3-01183086
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6
Fission Time Evolution with Excitation Energy from a Crystal Blocking Experiment
Autor: C. Cohen, J. C. Poizat, D. Jacquet, D. Schmaus, Y. Périer, F. Goldenbaum, E. Lienard, Denis Dauvergne, M. Morjean, J. Dural, M. Chevallier, R. Kirsch, A. L'Hoir, Marcel Toulemonde, J. Galin, B. Lott, Geoffroy Prévot, J. Remillieux
Publikováno v: Physical Review Letters
Physical Review Letters, 1999, 82, pp.5012-5015. ⟨10.1103/PhysRevLett.82.5012⟩
Physical Review Letters, American Physical Society, 1999, 82, pp.5012-5015
Fission times of uraniumlike nuclei with excitation energies up to about 250 MeV have been inferred from blocking effects in a single crystal. They are found longer by at least 1 order of magnitude than the ones obtained by other techniques, a hint f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40233636ed25681999ad7070a21c1169
https://doi.org/10.1103/physrevlett.82.5012
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7
Charge states and energy loss of300−MeV/uU73+ions channeled in a silicon crystal
Autor: Yu.L. Pivovarov, J. Remillieux, C. Cohen, Th. Stöhlker, Hans Geissel, G. Münzenberg, S. Czajkowski, S. Andriamonje, F. Nickel, Takatoshi Suzuki, N. Cue, Denis Dauvergne, T. Kandler, A. Magel, P. H. Mokler, R. Kirsch, C. Scheidenberger, Marie-Françoise Politis, J. C. Poizat, D. Schmaus, Jens Ulrik Andersen, A. L'Hoir, H. Irnich, Michel Chevallier, C. Böckstiegel, Marcel Toulemonde, J.S. Forster
Publikováno v: Physical Review A. 59:2813-2826
mitted along a ^110& axis of a 120-mm-thick Si crystal. The emerging charge state distribution FC(qout) for well-channeled ions is governed mainly by electron impact ionization ~EII!. The corresponding EII cross sections were obtained by fitting the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0983e5b28e3301703ba64547e39fe62
https://doi.org/10.1103/physreva.59.2813
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8
Charge state distributions after the scattering of fast He+-ions from an Al(111)-surface under a grazing angle of incidence
Autor: J. C. Poizat, J. Remillieux, H.W Ortjohann, Helmut Winter, G Siekmann
Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 135:372-376
He + -ions with energies from 3 keV to 1.4 MeV are scattered from a clean and flat Al (1 1 1)-surface under a grazing angle of incidence, and the scattered projectiles are analyzed with respect to charge states. We observe defined kinematic threshold
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54786d3b8e52b8515a91c847461e0666
https://doi.org/10.1016/s0168-583x(97)00611-3
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9
Ion-by-ion measurements of backward secondary electron emission of carbon foilsunder the impact of MeVH+,H0,H−, andH2+projectiles
Autor: R. Kirsch, M. Fallavier, J. C. Poizat, Z. Vidovic, J. Remillieux, A. Billebaud
Publikováno v: Physical Review A. 55:1124-1128
We have experimentally studied the backward electron emission from solid carbon bombarded by ${\mathrm{H}}^{+}$, ${\mathrm{H}}^{0}$, ${\mathrm{H}}^{\mathrm{\ensuremath{-}}}$, and ${\mathrm{H}}_{2}^{+}$ projectiles at MeV energies. We used a coinciden
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18915693de110746090496896466858b
https://doi.org/10.1103/physreva.55.1124
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10
[Untitled]
Autor: J. Remillieux, H. Reich, J. Dural, J. C. Poizat, K. Beckert, Marcel Toulemonde, F. Nolden, A. L'Hoir, F. Nickel, F. Sanuy, B. Franzke, Th. Stöhlker, S. Andriamonje, P.H. Mokler, C. Cohen, Denis Dauvergne, R. Kirsch, Hans Geissel, H.-Th. Prinz, R. Moshammer, D. Schmaus, M. Chevallier, M. Steck, C. Scheidenberger, H. Eickhoff
Publikováno v: Hyperfine Interactions. 108:325-332
A cooled beam of decelerated highly-charged heavy ions is slowly extracted out of the cooler and storage ring ESR, by combining the deceleration technique and the charge exchange extraction mode. The quality of the external ion beam is tested by a ch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2cf21cca4ab15cc765c9a4c3c89a0333
https://doi.org/10.1023/a:1012631317353
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