Fission cross section ratios for sup 233,234,236 U relative to sup 235 U from 0. 5 to 400 MeV
- Los Alamos National Lab., NM (USA)
- National Inst. of Standards and Technology, Gaithersburg, MD (USA)
- Oak Ridge National Lab., TN (USA)
Neutron-induced fission cross section ratios from 0.5 to 400 MeV for samples of {sup 233, 234, 236}U relative to {sup 235}U have been measured at the WNR neutron Source at Los Alamos. The fission reaction rate was determined using a fast parallel plate ionization chamber at a 20-m flight path. Cross sections over most the energy range were also extracted using the neutron fluence determined with three different proton telescope arrangements. Those data provided the shape of the {sup 235}U(n,f) cross section relative to the hydrogen scattering cross section. That shape was then normalized to the very accurately known value for {sup 235}U(n,f) at 14.1 MeV to allow us to obtain cross section section values from the ratio data and our values for {sup 235}U(n,f). 6 refs., 1 fig.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5730165
- Report Number(s):
- LA-UR-91-1621; CONF-910503-19; ON: DE91013227
- Resource Relation:
- Conference: International conference on nuclear data for science and technology, Juelich (Germany, F.R.), 13-17 May 1991
- Country of Publication:
- United States
- Language:
- English
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Neutron-induced fission cross sections of /sup 233/U, /sup 234/U, /sup 236/U, and /sup 238/U with respect to /sup 235/U
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URANIUM ISOTOPES
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FISSION
NEUTRON SOURCES
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652020* - Nuclear Properties & Reactions
A=220 & above
Experimental