Accession Number : AD0671617
Title : MEASUREMENTS OF THE NEUTRON ANGULAR FLUX SPECTRUM IN WATER.
Descriptive Note : Annual summary rept. 1 Oct66-30 Sep 67,
Corporate Author : GULF GENERAL ATOMIC INC SAN DIEGO CALIF
Personal Author(s) : Profio,A. E. ; Cerbone,R. J. ; Carriveau,G. W. ; Gozani,T.
Report Date : 20 NOV 1967
Pagination or Media Count : 139
Abstract : Measurements of the neutron angular flux spectrum from a near-fission point source in infinite water were made to provide a standard of comparison for neutron penetration calculations. The spectrum from 0.002 eV to 15 MeV was measured with a typical accuracy of plus or minus 20% and a resolution of plus or minus 5% at angles from 0 degrees to 90 degrees and radii out to 38.1 cm. In addition, dieaway and foil traverse measurements were made. Measurements were compared with preliminary discrete-ordinates calculations with moderately good agreement in the fast neutron spectrum. Additional work is required to calculate the low energy flux correctly. (Author)
Descriptors : (*WATER, *NEUTRON SPECTRUM), (*SHIELDING, WATER), REACTOR MODERATORS, NEUTRON FLUX, NEUTRON TRANSPORT THEORY, RADIATION MEASURING INSTRUMENTS, FOILS(MATERIALS), GOLD, STANDARDS
Subject Categories : Nuclear Radiation Shield, Protection & Safety
Fission Reactor Materials
Distribution Statement : APPROVED FOR PUBLIC RELEASE