1. NAME AND TITLE

MUSCAT: Calculation of Neutron Currents in Spherical and Cylindrical Cavities by Means of View Factors.

2. CONTRIBUTORS

General Atomic, San Diego, California.

OECD Nuclear Energy Agency Data Bank, Gif-sur-Yvette, France.

3. CODING LANGUAGE AND COMPUTER

FORTRAN IV; IBM 360/370.

4. NATURE OF PROBLEM SOLVED

MUSCAT is a program for computing the incident scattered neutron currents as a function of position within the following cavities: 1) cavity formed by two truncated concentric spheres, 2) cavity between two concentric circular cylinders, and 3) cylindrical cavity.

5. METHOD OF SOLUTION

In the analysis, the concept of view factors has been utilized. The view factor is defined as the fraction of neutrons, leaving a surface in all directions, which is intercepted by another surface or surfaces.

MUSCAT presents a compilation of the view factors and a description of the code system for the case of two concentric cylinders and the case of a cylindrical cavity.

6. RESTRICTIONS OR LIMITATIONS

None noted.

7. TYPICAL RUNNING TIME

No study has been made by RSIC of typical running times for MUSCAT.

8. COMPUTER HARDWARE REQUIREMENTS

The code was designed to run on the IBM 7044 and the IBM 360/370.

9. COMPUTER SOFTWARE REQUIREMENTS

MUSCAT requires an IBM FORTRAN IV compiler.

10. REFERENCE

M. J. Gerber and B. W. Roos, "MUSCAT, A FORTRAN IV View Factor Shielding Code," GAMD-6775 (December 1965).

11. CONTENTS OF CODE PACKAGE

Included are the referenced document and one (1.2MB) DOS diskette which contains the source code and sample problem input and output.

12. DATE OF ABSTRACT

December 1981; reviewed March 1982.