Published March 1983 | Version v1
Journal article Metadata-only

Concentration of E2 strength near the fission barrier of sup(234,236,238)U

Creators

  • 1. Sao Paulo Univ. (Brazil). Inst. de Fisica
  • 2. Lawrence Livermore National Lab., CA (USA)

Description

The electrofission angular distribution for 234U in the energy range 5.5 to 13 MeV were measured and are analyzed together with those obtained previously for 236U and 238U. The competition between the K=0 and K=1 fission channels following E2 excitation is established, showing a dominance of the K=0 channel for near-barrier fission. A substantial concentration of E2 strength near the fission barrier is found, in good agreement with earlier photofission angular-distribution studies. (Author)

Abstract (Portuguese)

As distribuicoes angulares de eletrofissao do 238U, na faixa de energias de 5,5 a 13 MeV, foram medidas e a seguir analisadas conjuntamente com as distribuicoes angulares do 236U e 238U obtidas anteriormente neste Laboratorio. Foi estabelecida a competicao entre os canais de fissao K=0 e K=1, mostrando o dominio do canal K=0 perto da barreira de fissao, Foi detetada uma concentracao apreciavel de 'strength' E2 perto da barreira de fissao, em excelente acordo com dados anteriores de distribuicao angular de fotofissao. (Autor)

Additional details

Publishing Information

Journal Title
Rev. Bras. Fis.
Journal Volume
13
Journal Issue
1
Series
Rev. Bras. Fis.
Journal Page Range
117-125
ISSN
0374-4922

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
15055110
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANGULAR DISTRIBUTION; COMPARATIVE EVALUATIONS; COMPILED DATA; ELECTROFISSION; E2-TRANSITIONS; FISSION BARRIER; MEV RANGE 01-10; MEV RANGE 10-100; THEORETICAL DATA; URANIUM 234; URANIUM 236; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; DATA; DISTRIBUTION; ELECTRON REACTIONS; ENERGY; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FISSION; HEAVY NUCLEI; INFORMATION; ISOTOPES; LEPTON REACTIONS; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; POTENTIAL ENERGY; RADIOISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES