1. NAME AND TITLE

SMOG: Code System for Neutron Cross Section Evaluation (Optical Method).

2. CONTRIBUTOR

Centro di Calcolo dell' ENEA, Bologna, Italy, through the OECD Nuclear Energy Agency Data Bank, Gif-sur-Yvette, France.

3. CODING LANGUAGE AND COMPUTER

Fortran IV; IBM 3033.

4. NATURE OF PROBLEM SOLVED

SMOG evaluates neutron cross sections by using the optical method.

5. METHOD OF SOLUTION

For numerical integration, the Fox-Goodwins method is used. Many types of optical potential are allowed.

6. RESTRICTIONS OR LIMITATIONS

Angular momentum of 1 less than or equal to 20 is required.

7. TYPICAL RUNNING TIME

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

8. COMPUTER HARDWARE REQUIREMENTS

SMOG is operable on the IBM 3033. It requires 110 K bytes.

9. COMPUTER SOFTWARE REQUIREMENTS

A Fortran IV compiler is required. The program is executed under IBM MVS-SP.

10. REFERENCES

SMOG Programme (Revised Version) Informal Notes.

V. Benzi, F. Fabbri, and A. M. Saruis, "SMOG: Un Programma Per Il Calcolo Dei Parametri Di Interazione Neutrone-Nucleo Con Il Modello Ottico," Informal Report.

11. CONTENTS OF CODE PACKAGE

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

12. DATE OF ABSTRACT

June 1986.