| Autor: |
Leinweber, G., Burke, J., Lubitz, C. R., Knox, H. D., Drindak, N. J., Block, R. C., Slovacek, R. E., Werner, C. J., Francis, N. C., Danon, Y., Moretti, B. E. |
| Zdroj: |
Nuclear Science and Engineering; January 2000, Vol. 134 Issue: 1 p50-67, 18p |
| Abstrakt: |
AbstractNeutron 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 6Li 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 91Zr 292.5-eV resonance and include all significant resonances up to 2.5 keV. The zirconium resonance parameters Γγand Γn, determined in the present measurement, are compared with the ENDF/B-VI parameters. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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