Published November 2022 | Version v1
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Energy dependence of total kinetic energy of fission fragments for the standard and superlong modes analyzed separately by 4D Langevin model

Creators

  • 1. Tokyo Institute of Technology, School of Environment and Society, Department of Transdisciplinary Science and Engineering, Nuclear Engineering Course, Tokyo (Japan)

Description

Our previous study has shown that the decrease of average total kinetic energy (TKE) with increasing excitation energy is due to change of the deformation of the heavy fission fragments from spherical to ellipsoidal shape. However, decrease of the average TKE has been understand in the fission community as an increase of the fraction of symmetric (superlong) mode, which has smaller average TKE compared to the asymmetric (standard) mode. In this study, the average TKE for the asymmetric and symmetric fission modes were deduced separately in neutron-induced fission of 235U based on 4-dimensional Langevin calculation. It was found that the energy dependence of the overall TKE was primarily governed by the decrease of TKE of the standard mode. (author)

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Part of:
Proceedings of the 2021 symposium on nuclear data

Additional details

Identifiers

DOI
10.11484/jaea-conf-2022-001;

Publishing Information

Imprint Title
Proceedings of the 2021 symposium on nuclear data
Imprint Pagination
238 p.
Journal Page Range
p. 145-150
Report number
JAEA-Conf--2022-001

Conference

Title
2021 symposium on nuclear data
Dates
18-19 Nov 2021
Place
Tokai-mura (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
54059432
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BCS THEORY; COULOMB FIELD; ENERGY DEPENDENCE; FISSION; FISSION FRAGMENTS; FREE ENERGY; KINETIC ENERGY; LANGEVIN EQUATION; NEUTRONS; NUCLEAR DEFORMATION; NUCLEAR POTENTIAL; URANIUM 235
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; DEFORMATION; ELECTRIC FIELDS; ELEMENTARY PARTICLES; ENERGY; EQUATIONS; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEAR FRAGMENTS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; PHYSICAL PROPERTIES; POTENTIALS; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; THERMODYNAMIC PROPERTIES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
This symposium was held online; 8 refs., 5 figs.
Secondary number(s)
INDC(JPN)--0208