Measurement of the /sup 238/U subthreshold fission cross section for incident neutron energies between 0. 6 and 100 keV

Journal Article · Wed Jun 01 00:00:00 EDT 1977 · Nucl. Sci. Eng.; (United States)

OSTI ID:7097173

Difilippo, F C; Perez, R B; de Saussure, G; Olsen, D K; Ingle, R W

The neutron-induced /sup 238/U subthreshold fission cross section has been measured in the neutron energy range between 0.6 and 100 keV. A total of 28 fission clusters were identified. The well-known clusters at 721 and 1210 eV appeared resolved into their Class I components. Average /sup 238/U subthreshold fission cross sections were determined and compared with available results in the literature. The measurement is interpreted in terms of fission doorway (Class II levels) arising from the assumption of the existence of a double-humped fission barrier for the (/sup 238/U + n) compound nucleus at large deformations. On the basis of this model, several fission barrier parameters were determined.

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 7097173
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 63:2
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NEUTRON REACTIONS
FISSION
URANIUM 238 TARGET
CROSS SECTIONS
ENERGY LEVELS
EV RANGE 100-1000
FISSION BARRIER
KEV RANGE 01-10
KEV RANGE 10-100
LEVEL WIDTHS
BARYON REACTIONS
ENERGY
ENERGY RANGE
EV RANGE
HADRON REACTIONS
KEV RANGE
NUCLEAR REACTIONS
NUCLEON REACTIONS
POTENTIAL ENERGY
TARGETS
652026* - Nuclear Properties & Reactions
A=220 & above
Experimental- Spontaneous & Induced Fission- (-1987)