GAMMA-RAY HEAT GENERATION IN THE HNPF BIOLOGICAL SHIELDS

Technical Report · Sun Jul 30 04:00:00 EDT 1961

OSTI ID:4015513

Berger, S

The methods of analysis and reqdired data used in evaluating the gamma- ray heat generatibn in the axial and radial concrete biological shields of the Hallam Nuclear Power Facility are presented. Results of the calculations are also presented. The method used in calculating the various contributions to the total heat generation is discussed in some detail. As a prerequisite to calculating the capture gamma-ray contribution, the fast and thermal neutron flux distributions were determined. The specific activity of the Na coolant was also calculated. The maximum values of the heat generation were found tc be about 0.65 x 10/sup -4/ and 1.8 x 10/sup -4/ watts/gm in the axial and radial concrete biological shields, respectively. These values correspond to heat fluxes of 7.8 and 22 Btu/hr-ft/sup 2/ in the top and side concrete shields, respectively. In the top shield, this is due primarily to the absorption of the decay gamma-rays from Na/sup 24/ in the coolant. In the radial shield, the capture gamma-rays generated there are the predominant source of heat. (auth)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• DOE Contract Number: AT(11-1)-GEN-8
• NSA Number: NSA-15-025562
• OSTI ID: 4015513
• Report Number(s): NAA-SR-6244
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
CAPTURE
CONCRETES
COOLANTS
DECAY
FAST NEUTRONS
GAMMA RADIATION
HALLAM NUCLEAR POWER FACILITY
HEATING
NEUTRON FLUX
PHYSICS
SHIELDING
SODIUM
SODIUM 24