Absolute measurement of the U-235 fission cross section from 0. 2 - 1. 2 MeV

Conference · Mon Sep 01 04:00:00 EDT 1980 · NBS Spec. Publ. (U.S.); (United States)

OSTI ID:6235234

Meier, M M; Wasson, O A; Duvall, K C

The absolute U-235 neutron induced fission cross section has been measured at the NBS 3MV Van de Graaff laboratory from 0.2 to 1.2 MeV. The neutron flux monitor was a large plastic scintillator whose efficiency was both calculated and measured with the associated particle technique. The neutron source was the /sup 7/Li(p,n)/sup 7/Be reaction. Pulsed-beam time-of-flight techniques were used. The fission detector consisted of a large volume multiplated chamber with a measured mass of /sup 235/U. The cross sections, which were measured with a typical one standard deviation of 2.8%, are approximately 3% lower than the ENDF/B-V evaluation.

• Research Organization: National Bureau of Standards, Washington, DC
• OSTI ID: 6235234
• Report Number(s): CONF-791058-
• Conference Information: Journal Name: NBS Spec. Publ. (U.S.); (United States) Journal Volume: 594
• 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
BARYON REACTIONS
CROSS SECTIONS
DATA
ENERGY RANGE
EXPERIMENTAL DATA
FAST FISSION
FISSION
HADRON REACTIONS
INFORMATION
KEV RANGE
KEV RANGE 100-1000
MEV RANGE
MEV RANGE 01-10
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
TARGETS
URANIUM 235 TARGET