CLAVERIE, G.; ALÉONARD, M.M.; CHEMIN, J.F.; GOBET, F.; HANNACHI, F.; HARSTON, M.R.; MALKA, G.; SCHEURER, J.N.; MOREL, Pierre; MEOT, V.

doi:10.1103/PhysRevC.70.044303

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CLAVERIE, G.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

ALÉONARD, M.M.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

CHEMIN, J.F.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

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Physical Review C. 2004, vol. 70, p. 044303

American Physical Society

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We have searched for the nuclear excitation by electronic transition (NEET) of the isomeric level at 76 eV in $^{235}$U in a plasma induced by a YAG laser with an energy of 1 Joule and a full width at half maximum time distribution of 5 ns, operating at an intensity of 10$^{13}$ W cm$^{–2}$. We present a thorough description of the experimental conditions and analysis of our data. In this experimental situation we do not detect any excitation of the isomeric level, a result that is at variance with a previously reported one. An upper limit of 6×10$^{–6}$ per atom and per second averaged over the laser-pulse width has been set on the nuclear excitation rate. This value is compared with results obtained in previous experimental and theoretical works.< Leer menos

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nuclei with mass number 220 or higher

nuclear isomerism

nuclear energy level transitions

nuclear energy levels

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Search for nuclear excitation by electronic transition in $^{235}$U

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