CROSS SECTION OF THE U$sup 238$ (n, 2n) U$sup 237$ REACTION FOR 15 Mev NEUTRONS (in Russian)
Journal Article
·
· Atomnaya Energ.
OSTI ID:4310236
The cross section for the U/sup 238/(n,2n)U/sup 237/ reaction for 15-Mev neutrons developed by the authors in 1952 was compared with the cross section obtained by D. D. Knight et al. (Bull. Amer. Phys. Soc. ser. II. v. 2, 198, 1957) for neutrons with smaller energies, according to which the sigma (n,2n) increases sharply from 0 to 6 Mev up to (1.4 plus or minus 0.14) x 10/sup -24/ cm/sup 2/ at 10 Mev. The latter is close to the anticipated statistical theory value, where with increasing neutron energy up to 14 to 15 Mev, the gamma (n,2n) value should remain constant and equal to approximates 1.5 x 10/sup -24/ cm/sup 2/. Hence, the cross section of U/sup 238/(n,2n)U/sup 237/ for 15 Mev neutrons agrees with the statistical theory and the described data. The recently published values for (n,2n) reactions on U/sup 238/ for the fission spectrum neutrons equal to (17 approximates 3) x 10/sup -27/ cm/sup 2/ agree with the magnitudes which can be obtained by integrating sigma (n,2n) over the enegy of the fission neutron spectrum. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-003280
- OSTI ID:
- 4310236
- Journal Information:
- Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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