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Title: SCAP. Point Kernel Single or Albedo Scatter

Technical Report ·
OSTI ID:138520
;  [1]
  1. Westinghouse Electric Corp., Madison, PA (United States)

SCAP solves for radiation transport in complex geometries using the single or albedo-scatter point kernel method. The program is designed to calculate the neutron or gamma-ray radiation level at detector points located within or outside a complex radiation scatter source geometry or a user-specified discrete scattering volume. The geometry is described by zones bounded by intersecting quadratic surfaces with an arbitrary maximum number of boundary surfaces per zone. The anisotropic point sources are described as point-wise energy dependent distributions of polar angles on a meridian; isotropic point sources may be specified also. The attenuation function for gamma rays is an exponential function on the primary source leg and the scatter leg with a buildup factor approximation to account for multiple scatter on the scatter leg. The neutron attenuation function is an exponential function using neutron removal cross sections on the primary source leg and scatter leg. Line or volumetric sources can be represented as distributions of isotropic point sources, with uncollided line-of-sight attenuation and buildup calculated between each source point and the detector point.

Research Organization:
Westinghouse Electric Corp., Madison, PA (United States). Advanced Reactors Div.
Sponsoring Organization:
USDOE Assistant Secretary for Nuclear Energy, Washington, DC (United States)
OSTI ID:
138520
Report Number(s):
ESTSC-000531C760000; NESC-933
Resource Relation:
Other Information: DN: Subroutine RFLS, which allocates the requested small core memory (SCM), is written in CDC COMPASS assembly language.; PBD: 5 Aug 1982
Country of Publication:
United States
Language:
English