NEUTRON CAPTURE TO FISSION RATIOS IN U$sup 233$, U$sup 235$, Pu$sup 23$$sup 9$
Journal Article
·
· Nuclear Sci. and Eng.
OSTI ID:4787691
The ratio of neutron capture to fission cross sections, k, was measured for U/33, U , and Pu/3a at 9 incident neutron energies from 30 to 1000 kev. A pulsed and collimated neutron beam is passed through a target placed at the center of a large, cadmium-loaded, liquid scintillator. Capture and fission events are detected by means of their prompt gamma rays; elastic and inelastic scattering events are discarded because of their smaller pulse height. Fission is identified by the delayed pulses produced by capture in the scintillator of the fission neutrons. Corrections are applied for the fission events not followed by delayed neutron pulses and for the effect of background counts. This procedure yields values of 1 + alpha to an accuracy of 1 or 2%. (auth)
- Research Organization:
- Los Alamos Scientific Lab., N. Mex.
- NSA Number:
- NSA-16-012498
- OSTI ID:
- 4787691
- Journal Information:
- Nuclear Sci. and Eng., Journal Name: Nuclear Sci. and Eng. Vol. Vol: 12
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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