Calculation of delayed-neutron energy spectra in a QRPA-Hauser-Feshbach model
Journal Article
·
· Physical Review. C. Nuclear Physics
- Los Alamos National Laboratory
Theoretical {beta}-delayed-neutron spectra are calculated based on the Quasiparticle Random-Phase Approximation (QRPA) and the Hauser-Feshbach statistical model. Neutron emissions from an excited daughter nucleus after {beta} decay to the granddaughter residual are more accurately calculated than in previous evaluations, including all the microscopic nuclear structure information, such as a Gamow-Teller strength distribution and discrete states in the granddaughter. The calculated delayed-neutron spectra agree reasonably well with those evaluations in the ENDF decay library, which are based on experimental data. The model was adopted to generate the delayed-neutron spectra for all 271 precursors.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 957708
- Report Number(s):
- LA-UR-08-04219; LA-UR-08-4219; PRVCAN; TRN: US1005595
- Journal Information:
- Physical Review. C. Nuclear Physics, Journal Name: Physical Review. C. Nuclear Physics; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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