Spin-dependent calculation of fission neutron spectra and fission spectrum integrals for six fissioning systems
- Australian Nuclear Science and Technology Organisation, Lucas Heights (Australia)
Calculations of fission neutron spectra and fission spectrum integrals for six fissioning systems are reported. The systems studied are thermal-neutron-induced fission of /sup 233/U, /sup 235/U, and /sup 239/Pu; 2-MeV neutron fission of /sup 232/Th and /sup 238/U, and spontaneous fission of /sup 252/Cf. The Madland-Nix formalism is used, but is extended to take account of the spin of the fission fragment. Also, more recent values for the average energy release in fission are used. The results of the fission neutron spectrum calculations are given in tabular and graphical form for applied purposes and are compared with experimental data. Similar deviations from a Maxwellian spectrum are seen for each system. The effect on the fission neutron spectra of /sup 233/U, /sup 235/U, and /sup 239/Pu from inclusion of alternative values for the average total fragment kinetic energy is shown.
- OSTI ID:
- 5217369
- Journal Information:
- Nuclear Science and Engineering; (USA), Vol. 102:2; ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
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SPIN
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