Partial Photoneutron Cross Sections for the Isomeric State {sup 180}Ta{sup m}
Journal Article
·
· Physical Review Letters
- Department of Physics, Konan University, Okamoto 8-9-1, Higashinada, Kobe 658-8501 (Japan)
- Institute d'Astronomie et d'Astrophysique, Universite Libre de Bruxelles, Campus de la Plaine, CP-226, 1050 Brussels (Belgium)
- Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States)
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan)
- Nuclear Research and Consultancy Group, P.O. Box 25, NL-1755 ZG Petten (Netherlands)
- Departement de Physique Theorique et Appliquee, Service de Physique Nucleaire, B.P. 12, F-91680 Bruyeres-le-Chatel (France)
Photoneutron cross sections for {sup 181}Ta({gamma},n){sup 180}Ta{sup m} were determined from simultaneous measurements of total cross sections ({sigma}{sup tot}) and ground-state cross sections ({sigma}{sup gs}) for {sup 180}Ta in photodisintegration of {sup 181}Ta with laser Compton-backscattered {gamma} rays. Techniques of direct neutron counting and photoactivation were used for the measurement of {sigma}{sup tot} and {sigma}{sup gs}, respectively. The partial cross sections for the isomeric state serves as a novel probe of the nuclear level density of {sup 180}Ta. Implications for the p- and s-process nucleosynthesis of {sup 180}Ta{sup m} are given.
- OSTI ID:
- 20775246
- Journal Information:
- Physical Review Letters, Vol. 96, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.96.192501; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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