THERMAL NEUTRON CROSS SECTIONS OF THE Co$sup 58$ ISOMERS AND THE EFFECT ON FAST FLUX MEASUREMENTS USING NICKEL

Technical Report · Mon Jun 18 04:00:00 EDT 1962

OSTI ID:4787155

Hogg, C H; Weber, L D; Yates, E C

A large thermal neutron cross section for the product in a nuclear reaction used for neutron flux monitoring in reactors can lead to error. The threshold reaction Ni/sup 58/(n,p)Co/sup 58/ was utilized to measure fast neutron fluxes. The thermal neutron cross sections of the Co/sup 58/ isomers were measured as 1650 barns for the 71.3-day isomer and 140,000 barns for the 9.1-hr isomer. Tab1es of correction factors are presented. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-16-029753
• OSTI ID: 4787155
• Report Number(s): IDO-16744
• Country of Publication: United States
• Language: English

Related Subjects

COBALT 58
CROSS SECTIONS
ERRORS
FAST NEUTRONS
ISOMERS
MEASURED VALUES
NEUTRON FLUX
NICKEL 58
NUCLEAR REACTIONS
PHYSICS
PROTONS
THERMAL NEUTRONS