Study of the probability of near-threshold fission of the isotopes of Th, U, Np, Pu, and Am by bremsstrahlung

Journal Article · Tue Oct 31 23:00:00 EST 1978 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6023258

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

The bremsstrahlung beam of the microtron at our Institute has been used to measure photofission yields of nine nuclei: /sup 232/Th, /sup 233,235,236,238/U, /sup 237/Np, /sup 239,241/Pu, and /sup 241/Am in the energy region 4.4--7.0 MeV. The method of minimization of the directed deviation was used to reproduce the photofission cross sections from the integrated yields. The following problems are discussed in terms of the experimental data: resonance structure of the cross sections, effects of a two-humped shape of the fission barrier, and comparison of the fissility in the (..gamma..,f) and (n,f) reactions and in direct reactions.

• Research Organization: Institute of Physics Problems, USSR Academy of Sciences
• OSTI ID: 6023258
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 28:5; 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
ABSORPTION
AMERICIUM 241 TARGET
CROSS SECTIONS
ENERGY
ENERGY RANGE
FISSION
FISSION BARRIER
FISSION YIELD
MEV RANGE
MEV RANGE 01-10
NEPTUNIUM 237 TARGET
NUCLEAR POTENTIAL
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
PHOTOFISSION
PHOTONUCLEAR REACTIONS
PLUTONIUM 239 TARGET
PLUTONIUM 241 TARGET
POTENTIALS
RESONANCE ABSORPTION
TARGETS
THORIUM 232 TARGET
THRESHOLD ENERGY
URANIUM 233 TARGET
URANIUM 235 TARGET
URANIUM 236 TARGET
URANIUM 238 TARGET
YIELDS