GRACE I: An IBM 704-709 Program Designed for Computing Gamma-Ray Attenuation and Heating in Reactor Shields
- North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
GRACE I is a multigroup, muitiregion gamma-ray attenuation code written in the FORTRAN System for either the IBM 704 with an 8000 word minimum storage capacity or the IBM 709. The code was designed primarily for computing gamma-ray heating and gamma-ray dose rates in multiregion finite or semi-infinite slab shields. The buildup factor is represented analytically by a double exponential expression of the form suggested by Taylor. The contribution to the total flux distribution at any particular location in the shield from a given source region is computed using a single material buildup factor. If desired, however, a different buildup factor may be specified for each source region considered. As many as 30 regions, 10 mesh points per region 20 gamma-ray energy groups, 10 shield materials, and 5 material buildup factors may be included in a single calculation. In any region, either a uniform or an exponential source distribution may be specified.
- Research Organization:
- North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- AT(11-1)-GEN-8
- NSA Number:
- NSA-13-021322
- OSTI ID:
- 4233358
- Report Number(s):
- NAA-SR--3719
- Country of Publication:
- United States
- Language:
- English
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