Search for nuclear excitation by electronic transition in $^{235}$U
| Autor: | Claverie, G., Aléonard, M.M., Chemin, J.F., Gobet, F., Hannachi, F., Harston, M.R., Malka, G., Scheurer, J.N., Morel, Pierre, Meot, V. |
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| Přispěvatelé: | Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Service de Physique Nucléaire (SERVICE DE PHYSIQUE NUCLéAIRE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Physical Review C Physical Review C, 2004, 70, pp.044303. ⟨10.1103/PhysRevC.70.044303⟩ Physical Review C, American Physical Society, 2004, 70, pp.044303. ⟨10.1103/PhysRevC.70.044303⟩ |
| ISSN: | 2469-9985 2469-9993 |
| DOI: | 10.1103/PhysRevC.70.044303⟩ |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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