Statistical description of prompt neutron emission in the fission of heavy nuclei

Journal Article · Mon Feb 01 04:00:00 EST 1988 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6919044

Belov, A L; Krainov, V P

A method is described for calculating the number of prompt neutrons emitted by fragments resulting from spontaneous and induced fission of heavy nuclei. The method of calculation is based on utilization of the condition of minimum potential energy of the fissioning nucleus at the point of scission, and determines the extent of equilibrium deformations of the fragments. The distribution of thermal energy between the fragments is based on the condition of equality in their temperatures. The number of prompt neutrons emitted by each fragment is calculated unambiguously from its energy of excitation. A comparison is made of the calculated results with experimental data for /sup 235/U fission induced by thermal neutrons and 0.5-MeV neutrons, as well as spontaneous fission of the /sup 252/Cf nucleus.

• Research Organization: Moscow Engineering-Physics Institute
• OSTI ID: 6919044
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 47:2; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

653006* -- Nuclear Theory-- Spontaneous & Induced Fission
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DECAY
EMISSION
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FISSION
FISSION FRAGMENTS
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
MATHEMATICAL MODELS
MATHEMATICAL SPACE
MINUTES LIVING RADIOISOTOPES
NEUTRON EMISSION
NUCLEAR FRAGMENTS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEI
PHASE SPACE
POTENTIALS
RADIOISOTOPES
SPACE
SPONTANEOUS FISSION
STATISTICAL MODELS
TEMPERATURE DEPENDENCE
URANIUM 235
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES