Calculation of the prompt-neutron spectrum and average prompt-neutron multiplicity for the spontaneous fission of /sup 252/Cf
We calculate the prompt fission neutron spectrum and average prompt neutron multiplicity for the spontaneous fission of /sup 252/Cf. Our calculations are based upon conventional nuclear-evaporation theory and account for the effects of (1) the motion of the fission fragments, (2) the distribution of fission-fragment residual nuclear temperature, and (3) the energy dependence of the cross section for the inverse process of compound-nucleus formation. Because of increased accuracy requirements due to the use of the /sup 252/Cf(sf) reaction as a standard, we perform our calculations with greater accuracy than previously. In particular, we calculate the integral for the average energy release without approximation and with the use of more recent mass sources. Following our theoretical calculations, we perform a least-squares adjustment to a specific experimental spectrum and present the comparison.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6710036
- Report Number(s):
- LA-UR-82-2465; CONF-820942-13; ON: DE83000664
- Country of Publication:
- United States
- Language:
- English
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Improved calculation of the prompt fission neutron spectrum from the spontaneous fission of /sup 252/Cf
Related Subjects
A=220 & above
Theoretical-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BARYONS
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
EVEN-EVEN NUCLEI
FERMIONS
FISSION
FISSION FRAGMENTS
FISSION NEUTRONS
HADRONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
MULTIPLICITY
NEUTRON SPECTRA
NEUTRONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
PROMPT NEUTRONS
RADIOISOTOPES
SPECTRA
SPONTANEOUS FISSION
THEORETICAL DATA
YEARS LIVING RADIOISOTOPES