Search for an isomer shelf in /sup 232/Th photofission

Journal Article · Sun Jun 05 04:00:00 EDT 1983 · JETP Lett. (Engl. Transl.); (United States)

OSTI ID:5509316

Ostapenko, Y B; Smirenkin, G N; Soldatov, A S; Tsipenyuk, Y M

Measurements of the deep-tunneling yield of the reaction /sup 232/Th (..gamma.., f) during bombardment with bremsstrahlung ..gamma.. rays with maximum energy E/sub max/ ranging from 3.3 to 4.8 MeV are reported. The angular distribution of the photofission fragments is anisotropic near the threshold energy, E/sub max/ = 5.4--6.8 MeV. Both of the experiments, which were carried out to test for effects due to an ''isomer shelf,'' yield negative results.

• Research Organization: Institute of Physical Problems, Academy of Sciences of the USSR; Physicoenergetics Institute
• OSTI ID: 5509316
• Journal Information: JETP Lett. (Engl. Transl.); (United States), Journal Name: JETP Lett. (Engl. Transl.); (United States) Vol. 37:11; ISSN JTPLA
• Country of Publication: United States
• Language: English

Related Subjects

652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANISOTROPY
DATA
DISTRIBUTION
ENERGY RANGE
EXPERIMENTAL DATA
FISSION
FISSION FRAGMENTS
INFORMATION
ISOMERIC NUCLEI
MEV RANGE
MEV RANGE 01-10
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PHOTOFISSION
PHOTONUCLEAR REACTIONS
TARGETS
THORIUM 232 TARGET