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Effect of the plasma density scale length on the properties of Brehmsstrahlung X-ray sources created by picosecond laser pulses

hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorCOURTOIS, Christian
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorCOMPANT LA FONTAINE, A.
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorLANDOAS, O.
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorLEFEBVRE, E.
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorLIDOVE, G.
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorMÉOT, V.
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorMOREL, Pierre
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorNUTER, R.
hal.structure.identifierCentre d'études scientifiques et techniques d'Aquitaine [CESTA]
dc.contributor.authorBOSCHERON, A.
hal.structure.identifierCentre d'études scientifiques et techniques d'Aquitaine [CESTA]
dc.contributor.authorGRENIER, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorM. ALÉONARD, M.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGERBAUX, M.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGOBET, F.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorHANNACHI, F.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorMALKA, G.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorN. SCHEURER, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorTARISIEN, M.
dc.date.issued2009-01-23
dc.identifier.issn1070-664X
dc.description.abstractEnResults 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
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.title.enEffect of the plasma density scale length on the properties of Brehmsstrahlung X-ray sources created by picosecond laser pulses
dc.typeArticle de revue
dc.identifier.doi10.1063/1.3067825
dc.subject.halPhysique [physics]/Physique [physics]/Physique des plasmas [physics.plasm-ph]
bordeaux.journalPhysics of Plasmas
bordeaux.page013105
bordeaux.volume16
bordeaux.peerReviewedoui
hal.identifierin2p3-00360439
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00360439v1
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