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MEASUREMENT OF THE INELASTIC INTERACTION CROSS SECTION OF 13 TO 20 MEV NEUTRONS FOR CERTAIN ISOTOPES (in Russian)

Journal Article · · Atomnaya Energ.
OSTI ID:4831193
The inelastic scattering cross section of U/sup 235/ and Pu/sup 239/ for neutron energies ranging from 13 to 20 Mev were determined to fill the gap in the literature; in addition, similar measurements were carried out for U/sup 238/, Al, Fe, Cu and Pb for the purpose of checking previously obtained data. The experimental device consisted of an external neutron source and a detector placed within the sphere made of the material under study. This arrangement made it possible to use anisotropic sources, thus broadening the avaihable energy range. The neutrons were produced on a Van de Graaff generator by the T(n,d)He/sup 4/ reaction; the neutron spectrum obtained after scattering was analyzed on a 20- channel amplitude analyzer. The inelastic scattering cross section of U/sup 235/ ranged from 2.64 plus or minus 0.06 millibarn for l3.4 Mev to 2.74 plus or minus 0.07 millibarn for 18.7 Mev neutrons; the corresponding value for Pu/sup 239/ at 16.8 Mev was found to be 2.87 plus or minus 0.1 millibarn. The values of the other elements investigated agree well with previously published data. (TTT)
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-16-003685
OSTI ID:
4831193
Journal Information:
Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 11
Country of Publication:
Country unknown/Code not available
Language:
Russian