1. NAME AND TITLE

CCRMN: Code System for Calculating Complex Reactions of a Medium-Heavy Nucleus with Six Light Particles.

2. CONTRIBUTORS

Nankai University, Tianjin, China.

China Institute of Atomic Energy, Beijing, China.

3. CODING LANGUAGE AND COMPUTER

FORTRAN 77; UNIX Workstations (P00366MNYCP00).

4. NATURE OF PROBLEM SOLVED

CCRMN calculates several reaction cross sections for light-particle collisions with a heavy nucleus. Up to six different light particles may be selected at interaction energies between 1 - 100 MeV.

5. METHOD OF SOLUTION

The optical model with Neumanove methods solves the radial equation. Coulomb wave functions used in the optical model are calculated by the continued fraction method.

6. RESTRICTIONS OR LIMITATIONS

The target nucleus is medium-heavy (A = 28-208) and consists of up to six isotopes with largest mass difference less than 10. The interactions must be with a neutron, proton, alpha, deuteron, triton, or ³He at energies between 1-100 MeV. Input is limited to no more than 40 specified energy points.

7. TYPICAL RUNNING TIME

The RSICC RISC 600 workstation ran the sample problem within 5 minutes CPU time. CPU times are highly dependent on incident energy.

8. COMPUTER HARDWARE REQUIREMENTS

FACOM M340-S, HP, SUN, IBM RS/6000 Workstations.

9. COMPUTER SOFTWARE REQUIREMENTS

The code was written in Fortran 77 and was compiled on IBM with the xlf FORTRAN v 3.2.5 compiler.

10. REFERENCES

a) Included in package:

Qing-Biao Shen, "Program Abstract" (1997).

Chong-Hai Cai and Qing-Biao Shen, "Manual for CCRMN Users" (February 8, 1996).

b) Background information:

"Computer Code Abstract," Nuclear Science and Engineering, 126, 127-129 (May 1997).
 
 

11. CONTENTS OF CODE PACKAGE

Included are the references in 10.a and one DS/HD (1.44 MB) 3.5-inch diskette written in DOS format.

12. DATE OF ABSTRACT

March 1998.