Neutron capture and total cross-section measurements and resonance parameter analysis of zirconium up to 2.5 keV
- and others
Neutron capture and transmission measurements were performed by the time-of-flight technique at the Rensselaer Polytechnic Institute LINAC using metallic zirconium samples. The capture measurement was made at the 25-m flight station with a multiplicity-type capture detector, and the transmission total cross-section measurements were performed at the 25-m flight station with a {sup 6}Li glass scintillation detector. Resonance parameters were determined by a combined analysis of all 11 data sets (4 capture and 7 transmission) using the least-squares multilevel R-matrix code REFIT. The present measurements were undertaken to resolve discrepancies between common usage (ENDF/B-VI) and the recent measurements of Salah et al. for the 300-eV zirconium doublet. The present measurements support the Salah et al. conclusions. Specifically, the results confirm the assignment of J = 3 for the {sup 91}Zr 292.5-eV resonance and include all significant resonances up to 2.5 keV. The zirconium resonance parameters {Gamma}{sub {gamma}} and {Gamma}{sub n}, determined in the present measurement, are compared with the ENDF/B-Vi parameters.
- Research Organization:
- Lockheed Martin Corp., Schenectady, NY (US)
- OSTI ID:
- 20005668
- Journal Information:
- Nuclear Science and Engineering, Vol. 134, Issue 1; Other Information: PBD: Jan 2000; ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
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