STOCHASTIC ESTIMATES OF THE PENETRATION OF GAMMA RAYS THROUGH SLAB SHIELDS.
Abstract
The energ penetration and dose-rate buildup factors were calculated by Monte Carlo techniques on a digital computer for a plane, monodirectional source of gamma rays of 1.0, 2.5, and 6.0 Mev incident at various angles upon finite slab shields of lead, iron, ordinary concrete, and water. The exponential transformation and equivalent integration over the spatial variable were utilized to obtain results for slabs up to 18 mean-free-pathlengths in thickness. A simple expression was derived which relates a given buildup factor at any incident angle to the corresponding buildup factor at normal incidence. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 26, 1963
- Accession Number
- AD0422646
Entities
People
- A. G. Pieper
- L. A. Beach
Organizations
- United States Naval Research Laboratory