1. NAME AND TITLE

MUSPALB: Albedo Calculation of Multigroup Spectra of Neutrons Transmitted Through Multilayer Slab Shielding.

2. CONTRIBUTOR

Central Research Institute for Physics, Budapest, Hungary.

3. CODING LANGUAGE AND COMPUTER

ICL FORTRAN IV; ICL 1905.

4. NATURE OF PROBLEM SOLVED

MUSPALB solves multigroup neutron transmission, reflection, and internal spectra problems in multilayered slab geometry consisting of non-multiplying media. Transmitted and reflected spectra are computed.

5. METHOD OF SOLUTION

Albedo operator or transmission matrix formalism is applied in non-multiplying media with slab geometry and multigroup energy treatment. The code uses the Peirls integral equation method for the albedo matrix. The 26-group cross sections of Abagyan are used. Multilayered systems can be computed from matrices calculated for basic layers.

6. RESTRICTIONS OR LIMITATIONS

None noted.

7. TYPICAL RUNNING TIME

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

8. COMPUTER HARDWARE REQUIREMENTS

MUSPALB was designed for the ICL 1905 computer.

9. COMPUTER SOFTWARE REQUIREMENTS

A FORTRAN IV compiler is required.

10. REFERENCE

P. Vertes, "Calculation of Multigroup Spectra of Neutrons Transmitted Through Multilayer Shielding," KFKI-70-37 RPT (no date given).

11. CONTENTS OF CODE PACKAGE

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

12. DATE OF ABSTRACT

June 1972; revised April 1975.