Multiparameter studies of the emission of prompt neutrons in spontaneous fission of /sup 252/Cf

Journal Article · Sat Nov 30 23:00:00 EST 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5871931

Seregina, E A; D'yachenko, P P

A new analysis is made of the data of a previous multiparameter experiment, which permits a complete kinematic picture of the emission of prompt neutrons in spontaneous fission of /sup 252/Cf to be obtained in the framework of the isotropic evaporation model. The neutron characteristics calculated by transformation and summation of the spectra of prompt neutrons from fixed fragments are compared with the results of direct measurements. It is shown that the isotropic evaporation model permits description of the experimental results on the angular and energy distributions of fission neutrons with accuracy about 10%. The experimental data obtained indicate the possible existence of anisotropy of the form 1+0.1 cos/sup 2/ theta/sub cms/ in the neutron angular distribution in the coordinate system fixed to a moving fragment.

• Research Organization: Physics and Power Engineering Institute, Obninsk
• OSTI ID: 5871931
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 42:6; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

652016* -- Nuclear Properties & Reactions
A=220 & above
Theoretical-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
BARYONS
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DECAY
DISTRIBUTION
ELEMENTARY PARTICLES
EVAPORATION MODEL
EVEN-EVEN NUCLEI
FERMIONS
FISSION
FISSION FRAGMENTS
FISSION NEUTRONS
HADRONS
HEAVY NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NEUTRON SPECTRA
NEUTRONS
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PROMPT NEUTRONS
RADIOISOTOPES
SPECTRA
SPONTANEOUS FISSION
YEARS LIVING RADIOISOTOPES