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Journal articles
Effect of the plasma density scale length on the properties of Brehmsstrahlung X-ray sources created by picosecond laser pulses
Christian Courtois
1
A. Compant La Fontaine
1
O. Landoas
1
E. Lefebvre
1
G. Lidove
1
V. Méot
1
P. Morel
1
R. Nuter
1
A. Boscheron
2
J. Grenier
2
M. M. Aléonard
3
M. Gerbaux
3
F. Gobet
3
F. Hannachi
3
G. Malka
3
J. N. Scheurer
3
M. Tarisien
3
Christian Courtois 1
Author Employer institution : Université Polytechnique Hauts-de-France
A. Compant La Fontaine 1
Author
O. Landoas 1
Author
E. Lefebvre 1
Author
F. Gobet 3
Author IdHAL : franck-gobet ORCID : https://orcid.org/0000-0001-8863-9172
F. Hannachi 3
Author
G. Malka 3
Author
J. N. Scheurer 3
Author
M. Tarisien 3
Author
1
DAM/DIF - DAM Île-de-France (CEA Bruyères-le-Châtel 91297 Arpajon cedex - France)
- DAM - Direction des Applications Militaires : DAM/DIF (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DAM (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
2
CESTA - Centre d'études scientifiques et techniques d'Aquitaine (BP 2 33114 Le Barp - France)
- DAM - Direction des Applications Militaires : DAM/CESTA (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DAM (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
3
CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan (Chemin du Solarium - BP 120 - 33175 Gradignan Cedex - France)
- Université Sciences et Technologies - Bordeaux 1 (351 cours de la Libération - 33405 Talence cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR5797 (France)
Abstract : Results of an experimental study of multi-MeV bremsstrahlung x-ray sources created by picosecond laser pulses are presented. The x-ray source is created by focusing the short pulse in an expanding plasma obtained by heating a solid target with a time-delayed nanosecond laser beam. The high-energy part of the x-ray spectrum and emission lobe are inferred from photonuclear activation techniques. The x-ray dose is measured with silicon diodes. Two-dimensional images of the source are reconstructed from a penumbral imaging technique. These results indicate the creation of a relatively small source, below 200 µm diameter, delivering doses up to 12 mrad in air at 1 m with x-ray temperature up to 2.8 MeV. The diagnostics used give access to a whole set of coherent experimental results on the x-ray source properties which are compared to extensive numerical simulations. X-ray intensity and temperature are found to increase with the size of the preplasma. ©2009 American Institute of Physics
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Journal articles
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http://hal.in2p3.fr/in2p3-00360439
Contributor : Virginie Mas <>
Submitted on : Wednesday, February 11, 2009 - 11:55:07 AM
Last modification on : Monday, February 15, 2021 - 8:52:02 AM
Contributor : Virginie Mas <>
Submitted on : Wednesday, February 11, 2009 - 11:55:07 AM
Last modification on : Monday, February 15, 2021 - 8:52:02 AM
Identifiers
- HAL Id : in2p3-00360439, version 1
- DOI : 10.1063/1.3067825
Citation
Christian Courtois, A. Compant La Fontaine, O. Landoas, E. Lefebvre, G. Lidove, et al.. Effect of the plasma density scale length on the properties of Brehmsstrahlung X-ray sources created by picosecond laser pulses. Physics of Plasmas, American Institute of Physics, 2009, 16, pp.013105. ⟨10.1063/1.3067825⟩. ⟨in2p3-00360439⟩
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