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Search for the 6keV isomer excitation and decay in a $^{181}$Ta plasma produced with a high repetition rate laser

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.authorALÉONARD, M.M.
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.authorCLAVERIE, G.
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.authorMALKA, G.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorSCHEURER, J.-N.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorTARISIEN, M.
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorBLASCO, F.
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorDORCHIES, F.
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorFEDOSEJEVS, R.
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorFOURMENT, C.
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorSANTOS, J.J.
hal.structure.identifierService de Physique Nucléaire [SERVICE DE PHYSIQUE NUCLéAIRE]
dc.contributor.authorMÉOT, V.
hal.structure.identifierService de Physique Nucléaire [SERVICE DE PHYSIQUE NUCLéAIRE]
dc.contributor.authorMOREL, Pierre
dc.contributor.authorLIESFELD, B.
dc.contributor.authorROBSON, L.
dc.contributor.authorHANVEY, S.
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorDESCAMPS, D.
dc.contributor.editorS.A. Karamian
dc.contributor.editorJ.J. Carroll
dc.contributor.editorE.A. Cherepanov
dc.date.issued2006
dc.date.conference2005-06-26
dc.description.abstractEnThe possibility to excite the 6.2 keV, 6.8$\mu$ isomer in $^{181}$Ta within a plasma was studied with the high repetition rate laser available at the CELIA facility at Universite de Bordeaux 1. The laser is a 10mJ, 1kHz, 30fs Tisapphire laser. Excitation of the Ta isomer can be effective through electron excitation or photon absorption by the Ta nuclei inside the plasma produced in the interaction of the laser with solid Ta targets. We have, in a first step characterized the phton production issued from the Bremssttrahlung of electrons for I=1-6 10$^{16}$ W.cm$^{-2}$ laser intensities. The photon spectrum extends up to 500 keV. The plasma expansionwas also studied. We have used several set-ups to optimize the direct detection of the 6.2 keV gamma line which is a definite signature of the Ta de-excitation. This 6.8µs isomer lifetime is short compared to nuclear physic electronic time scales and a special care is to be taken for the detection system in order to observe the gamma-line.
dc.language.isoen
dc.source.title7th AFOSR Workshop on Isomers and Quantum Nucleonics
dc.title.enSearch for the 6keV isomer excitation and decay in a $^{181}$Ta plasma produced with a high repetition rate laser
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.page162-170
bordeaux.countryRU
bordeaux.title.proceeding7th AFOSR Workshop on Isomers and Quantum Nucleonics
bordeaux.conference.cityDubna
bordeaux.peerReviewedoui
hal.identifierin2p3-00101779
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2005-07-01
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00101779v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=7th%20AFOSR%20Workshop%20on%20Isomers%20and%20Quantum%20Nucleonics&rft.date=2006&rft.spage=162-170&rft.epage=162-170&rft.au=GOBET,%20F.&AL%C3%89ONARD,%20M.M.&HANNACHI,%20F.&CLAVERIE,%20G.&GERBAUX,%20M.&rft.genre=unknown


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