PARAMETERS OF THE 132-eV NEUTRON RESONANCE IN Co$sup 5$$sup 9$
The parameters of the resonance excited by the interaction of 132-ev neutrons with a Co/sup 59/ target nucleus were accurately determined, using fast choppers. Neutron transmission through thick and thin samples resulted in the following parameters: E/sub r/ = 132.0 plus or minus 0.5 ev; 2g GAMMA /sub n/ = 5.77 plus or minus 0.07 ev; GAMMA = 5.35 plus or minus 0.10 ev; and J =4. In addition, measurements of the resonance capture gamma -ray intensity gave the value for the radiation width GAMMA = 0.40 plus or minus 0.04 ev, based on the known thermal capture cross section of cobalt of 37.5 barns. The reduced and total resonance capture integrals are calculated from the above parameters to be 50.5 plus or minus 5.5 and 67.0 plus or minus 5.5 barns, respectively. The above results are compared with previously determined resonance parameters and also with direct measurements of the totai resonance capture integral. (auth)
- Research Organization:
- Brookhaven National Lab., Upton, N.Y.
- DOE Contract Number:
- AT(30-2)-GEN-16
- NSA Number:
- NSA-17-039967
- OSTI ID:
- 4638952
- Report Number(s):
- BNL-6780
- Country of Publication:
- United States
- Language:
- English
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