FAST NEUTRON FLUX MEASUREMENTS FOR SHIELDING APPLICATIONS

Technical Report · Thu Aug 27 04:00:00 EDT 1959

DOI:https://doi.org/10.2172/4721599· OSTI ID:4721599

Roy, M

Pressed sulfur pellets, irradiated for two hours at 10 w yielded satisfactory counting rates on an internal proportional counter for measuring fast neutrons. The pellets were counted in their original form and an equation applicable to thick sources was applied to obtain disintegration rates. Decay data and beta energy analyses indicated that the induced activity was due to P/ sup 32/. Cross section values reported in the literature for the S/sup 32/(n,p)P/ sup 32/ reaction involved were found to differ widely. The fust flux values given are based on an assumed cross section of 285 millibarns in a fission spectrum. Thermal flux values at the same positions and for the same power are also presented. (auth)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• Sponsoring Organization: USDOE
• DOE Contract Number: AT(11-1)-GEN-8
• NSA Number: NSA-17-020349
• OSTI ID: 4721599
• Report Number(s): NAA-SR-Memo-4365
• Country of Publication: United States
• Language: English

Related Subjects

CROSS SECTIONS
DECAY
EQUATIONS
FAST NEUTRONS
INSTRUMENTS AND INSTRUMENTATION
IRRADIATION
NEUTRON FLUX
NUCLEAR REACTIONS
PHOSPHORUS 32
PROPORTIONAL COUNTERS
SHIELDING
SULFUR 32