Measurement of the energy dependence of prompt fission neutron emission from /sup 233/U, /sup 235/U, and /sup 239/Pu for E = 0. 0005 to 10 MeV relative to emission from spontaneous fission of /sup 252/Cf
A series of experiments has been performed to measure the dependence on the incident neutron energy of anti nu/sub p/(E), the average number of prompt neutrons emitted per fission, of /sup 233/U, /sup 235/U, and /sup 239/Pu relative to anti nu/sub p/ (/sup 252/Cf), the average number of prompt neutrons emitted in spontaneous fission of /sup 252/Cf. The incident energy range was 0.0005 to 10 MeV. A white neutron source was generated by the Oak Ridge Electron Linear Accelerator and the energies of the neutrons incident on the fissile samples were determined by time-of-flight techniques. The fissile sample and the /sup 252/Cf standard were contained in a fission chamber surrounded by a large volume (0.91 m/sup 3/) liquid scintillator loaded with gadolinium. Fissions were detected by the fission chamber and the neutrons were detected by the scintillator. The results for /sup 239/Pu agree over most of the energy range with the results of the evaluation of Manero and Konshin. However, the present results are larger for /sup 235/U than those of Manero and Konshin and for /sup 233/U the present data yield a different energy dependence in the interval 100 to 600 keV. Final results are displayed.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5712969
- Report Number(s):
- CONF-850507-9; ON: DE85011931
- Country of Publication:
- United States
- Language:
- English
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Measurements of the energy dependence of prompt neutron emission from /sup 233/U, /sup 235/U, /sup 239/Pu, and /sup 241/Pu for E /SUB n/ = 0. 005 to 10 eV relative to emission from spontaneous fission of /sup 252/Cf
PROMPT NEUTRONS FROM FISSION
Related Subjects
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
DATA
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FERMIONS
FISSION
FISSION NEUTRONS
HADRON REACTIONS
HADRONS
INFORMATION
MULTIPLICITY
NEUTRON REACTIONS
NEUTRON SPECTRA
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PLUTONIUM 239 TARGET
PROMPT NEUTRONS
SPECTRA
TARGETS
URANIUM 233 TARGET
URANIUM 235 TARGET