U.S. Department of EnergyOffice of Scientific and Technical Information
SCAP. Point Kernel Single or Albedo Scatter
Abstract
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.
- Authors:
-
- Westinghouse Electric Corp., Madison, PA (United States)
- Publication Date:
- Research Org.:
- Westinghouse Electric Corp., Madison, PA (United States). Advanced Reactors Div.
- Sponsoring Org.:
- USDOE Assistant Secretary for Nuclear Energy, Washington, DC (United States)
- OSTI Identifier:
- 138520
- Report Number(s):
- ESTSC-000531C760000; NESC-933
- Resource Type:
- Technical Report
- 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
- Subject:
- 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; 66 PHYSICS; 22 NUCLEAR REACTOR TECHNOLOGY; S CODES; RADIATION TRANSPORT; COMPUTER PROGRAM DOCUMENTATION; SCATTERING; RADIATION DOSES; POINT KERNELS; SHIELDING; ALBEDO; GAMMA RADIATION; POINT SOURCES
Citation Formats
Disney, R K, and Bevan, S E. SCAP. Point Kernel Single or Albedo Scatter. United States: N. p., 1982.
Web.
Disney, R K, & Bevan, S E. SCAP. Point Kernel Single or Albedo Scatter. United States.
Disney, R K, and Bevan, S E. 1982.
"SCAP. Point Kernel Single or Albedo Scatter". United States.
@article{osti_138520,
title = {SCAP. Point Kernel Single or Albedo Scatter},
author = {Disney, R K and Bevan, S E},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/138520},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Aug 05 00:00:00 EDT 1982},
month = {Thu Aug 05 00:00:00 EDT 1982}
}