Published September 1982 | Version v1
Journal article Metadata-only

Nuclear fission

Creators

Description

V.M. STRUTINSKY's semi-classical method is the most precise to determine the energy of the different states along the fission way. The double-humped fission barrier explains fission isomerism. V.M. STRUTINSKY's barrier explains the ''intermediate structure'' observed in the cross section under the threshold; it provides also the observed effect of ''vibrational resonances'' with an interpretation. Taking an asymmetry parameter in consideration, a triple-humped fission barrier seems to be essential now for the light actinides. There is still a microscopic fission barrier to be explained

Abstract (French)

La methode semi-classique de V.M. STRUTINSKY est la plus precise pour determiner l'energie des differents etats le long du chemin de fission. La barriere de fission a deux bosses explique l'isomerisme de fission. La barriere de V.M. STRUTINSKY explique la ''structure intermediaire'' observee dans la section efficace aus-dessous du seuil; elle fournit aussi une interpretation a l'effet observe des ''resonances vibrationnelles''. En considerant un parametre d'asymetrie, une barriere de fission a trois bosses semble s'imposer maintenant pour les actinides legers. Il reste a expliquer une barriere de fission microscopique

Additional details

Additional titles

Original title (French)
La fission nucleaire

Publishing Information

Journal Title
Recherche (Paris)
Journal Issue
no.136
Series
Recherche (Paris).
ISSN
0029-5671

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
14716647
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
ACTINIDES; AMERICIUM 242; CROSS SECTIONS; FISSILE MATERIALS; FISSION; FISSION BARRIER; FISSION ISOMERS; HEAVY NUCLEI; PROTACTINIUM 234; REVIEWS; SEMICLASSICAL APPROXIMATION; STRUTINSKY THEORY; THORIUM 230; VIBRATIONAL STATES
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DOCUMENT TYPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; ENERGY; ENERGY LEVELS; EVEN-EVEN NUCLEI; EXCITED STATES; FISSIONABLE MATERIALS; HOURS LIVING RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; METALS; MINUTES LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEI; ODD-ODD NUCLEI; POTENTIAL ENERGY; PROTACTINIUM ISOTOPES; RADIOISOTOPES; THORIUM ISOTOPES; YEARS LIVING RADIOISOTOPES