STRATIFIED SLAB GAMMA-RAY DOSE-RATE BUILDUP FACTORS FOR LEAD AND WATER SHIELDS
The ORACLE Monta Carlo code for the calculation of the penetration of gamma rays through stratified slabs was used to calculate a total of 512 problems for eight different lead and water configurations. The energy of the incident radiation, the angle of incidence, the thickness of the shield, and the percentage of lead preceding or following water were varied. The source was assumed to be a monodirectional beam with energies of 1, 3. 6, and 10 Mev. The in cident angles chosen were those which would give slant thicknesses of 1, 2, 3, and 4 times the normal thickness. The infinite slabs had finite normal thicknesses of 1, 2, 4, and 6 mean free paths. The results obtained included the dose rate and energy flux throughout the slab and at the rear; dose-rate buildup factors; the heat deposited throughout the slab; and the energy and angular distribution reflected from and transmitted through the slab. Only the buildup factors at the rear of the slabs for normal incidence are considered in this report. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-12-008854
- OSTI ID:
- 4330882
- Report Number(s):
- CF-58-1-41
- Country of Publication:
- United States
- Language:
- English
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