Nuclear temperature effects in the scission-point model of nuclear fission

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.28.1640· OSTI ID:5665002

Moreau, J; Heyde, K; Waroquier, M

According to the scission-point model, the probability for a particular fission event can be expressed in terms of the collective potential and the collective kinetic energy at the scission point. Two additional assumptions make the scission-point model an easily calculable model: the assumption of equal collective kinetic energies for constant distances d between the tips of the fragments, and the assumption that one is able to characterize the excitation energy of the fragments with a nuclear temperature T, independent of both the mass ratio and the charge ratio, and of the deformations of the fragments. It is pointed out that the latter assumption violates energy conservation. A modified, recursive procedure is proposed, resulting in an ''energy conservation consistent'' scission-point method. Mass and charge distributions for the fission of /sup 235/U and /sup 252/Cf compound systems have been calculated and compared with distributions following the ''standard'' scission-point method of Wilkins, Steinberg, and Chasman.

• Research Organization: Institute for Nuclear Physics, B-9000 Gent, Belgium
• OSTI ID: 5665002
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 28:4; ISSN PRVCA
• 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
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
CHARGE DISTRIBUTION
COLLECTIVE MODEL
DEFORMATION
DIFFERENTIAL EQUATIONS
ENERGY
EQUATIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FISSION
FISSION FRAGMENTS
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KINETIC ENERGY
MASS SPECTRA
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NUCLEAR DEFORMATION
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR TEMPERATURE
NUCLEI
PARTIAL DIFFERENTIAL EQUATIONS
RADIOISOTOPES
SCHROEDINGER EQUATION
SPECTRA
URANIUM 235
URANIUM ISOTOPES
WAVE EQUATIONS
YEARS LIVING RADIOISOTOPES