Properties of the angular anisotropy of deep sub-barrier photofission of even-even nuclei

Journal Article · Sat Sep 01 04:00:00 EDT 1979 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5237374

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

We report the method and results of measurements of angular distributions of fragments in the (..gamma..,f) reaction for /sup 232/Th, /sup 236/U, and /sup 238/U carried out in connection with the investigation of the properties of deep sub-barrier photofission: the isomeric shelf phenomenon, disappearance of the angular anisotropy (/sup 236,238/U), and the absence of this effect and of the sub-barrier enhancement of quadrupole photofission in /sup 232/Th. The experimental data presented permit an understanding of the nature and relation of these properties in terms of the concept of a two-humped fission-barrier structure.

• Research Organization: Institute of Physics Problems, USSR Academy of Sciences
• OSTI ID: 5237374
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 30:3; ISSN SJNCA
• 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
DISTRIBUTION
ENERGY RANGE
FISSION
FISSION BARRIER
MEV RANGE
MEV RANGE 01-10
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
PHOTOFISSION
PHOTONUCLEAR REACTIONS
POTENTIALS
TARGETS
THORIUM 232 TARGET
URANIUM 236 TARGET
URANIUM 238 TARGET