Measurement of 76Se and 78Se (γ, n) Cross Sections

The (γ, n) cross sections of Se isotopes ( 76 Se, 78 Se) were measured to supply fundamental data for estimating the inverse reaction cross section, i.e., the 79 Se(n, γ) 80 Se cross section. The enriched samples and a reference 197 Au sample were irradiated with laser-Compton scattering (LCS) γ-ray...

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Bibliographic Details
Published in:Journal of nuclear science and technology 2011-07, Vol.48 (7), p.1017-1024
Main Authors: KITATANI, Fumito, HARADA, Hideo, GOKO, Shinji, UTSUNOMIYA, Hiroaki, AKIMUNE, Hidetoshi, TOYOKAWA, Hiroyuki, YAMADA, Kawakatsu
Format: Article
Language:English
Subjects:
Applied sciences
Au-197
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
gamma ray strength function
Installations for energy generation and conversion: thermal and electrical energy
inverse reaction
laser-Compton scattering gamma rays
neutron capture cross section
Nuclear fuels
photonuclear reaction
Se-76
Se-78
Se-79
Se-80
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Summary:The (γ, n) cross sections of Se isotopes ( 76 Se, 78 Se) were measured to supply fundamental data for estimating the inverse reaction cross section, i.e., the 79 Se(n, γ) 80 Se cross section. The enriched samples and a reference 197 Au sample were irradiated with laser-Compton scattering (LCS) γ-rays. The excitation function of each (γ, n) cross section was determined for the energy range from each near neutron separation energy to the threshold energy of (γ, 2n) reaction. The energy point corresponding to each cross section was deduced using the accurately determined energy distribution of LCS γ-rays. Systematic (γ, n) cross sections for Se isotopes including 80 Se were compared with those calculated by using a statistical model calculation code TALYS.
ISSN:0022-3131
1881-1248
DOI:10.1080/18811248.2011.9711787