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Ni$sup 58$(n,p)Co$sup 58$ CROSS SECTION FOR NEUTRONS OF ENERGIES BETWEEN 2.2 AND 3.6 MEV

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
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The relative cross section for Ni/sup 58/(n,p)Co/sup 58/ was measured by an activation method for neutron energies of 2.2 to 3.6 Mev. The absolute cross section at 3.55 Mev neutron energy was found to be 195 plus or minus 30 mb by comparing the intensity of the 810 kev gamma ray of Co/sup 58/ with the amount of Si/sup 31/ formed in the P/sup 31/(n,p)Si/sup 31/ reaction, which has a previously known cross section of 96.2 plus or minus 9.0 mb. The cross section rose from 140 mb at 2.2 Mev to a maximum value of 214 mb at 3.0 Mev. Observed cross sections were compared with the predictions of the statistical theory of nuclear reactions by using a square well potential and a diffuse edge potential. In neither case could a satisfactory agreement with expirimental data be obtained. (auth)
Research Organization:
Universidad de Chile, Santiago
NSA Number:
NSA-15-003473
OSTI ID:
4110722
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 120; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ACTIVATION
COBALT
CROSS SECTIONS
ENERGY LEVELS
GAMMA RADIATION
MEASURED VALUES
NEUTRONS
NICKEL
PHYSICS
PROTONS
SILICON