Determination of partial (n,xngamma) cross-sections in 193-Ir [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2003.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: PDF-file: 12 pages; size: 0.2 Mbytes
Additional Creators:: Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The ¹⁹³Ir(n,n'){sup 193m}Ir cross section for the production of the 80-keV isomer in ¹⁹³Ir is evaluated using a combination of experimental data and nuclear reaction modeling, from threshold to about 20 MeV. Four discrete γ lines feeding the isomer were recently observed with the GEANIE γ-ray detector at LANSCE. Theoretical calculations of the nuclear reaction mechanisms in play are then carried out to evaluate the contributions not accounted for in the experimental setup (direct population; fraction of γ-lines not observed in the experiment; etc). Experiment and modeling are then combined to provide a total cross section for the production of the Iridium isomer. We finally compare our result with activation measurement data available for a few energy points.

Report Numbers:

E 1.99:ucrl-proc-200313
ucrl-proc-200313

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Published through SciTech Connect.
10/15/2003.
"ucrl-proc-200313"
Presented at: Tenth International Conference on Nuclear Reaction Mechanisms, Vienna, Italy, Jun 09 - Jun 13, 2003.
Nelson, R; Becker, J A; Fotiades, N; Younes, W; Devlin, M; Garrett, P E; Chadwick, M B; Talou, P.

Funding Information:

W-7405-ENG-48

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