1. NAME AND TITLE

FDKR: Radioactivity and Dose Rate Calculation Code for Fission, Fusion and Hybrid Reactors.

DATA LIBRARY

AF-DCDLIB: Decay Chain Library for Activation Products, Fission Products and Actinides.

FDKR is based on CCC-323/DKR, which originated at the University of Wisconsin in 1976.

2. CONTRIBUTOR

Southwestern Institute of Physics, Leshan, Sichuan, People's Republic of China.

3. CODING LANGUAGE AND COMPUTER

Fortran 77; IBM 4381.

4. NATURE OF PROBLEM SOLVED

The main purpose of FDKR is to calculate the radioactivity-related parameters of fusion-fission hybrid reactors. Once neutron flux is provided, FDKR can also be used for pure fusion or fission reactors.

5. METHOD OF SOLUTION

The construction of linear decay chains and the solution of activation product chains are those adopted in the CCC-323/DKR code, on which FDKR is based. The generation and loss rates of fission products are added to the relevant chains. All necessary data are provided, resulting in a much larger data library AF-DCDLIB than DCDLIB used in DKR. AF-DCDLIB was specially designed for FDKR. The data are mainly generated from ENDF/B-IV and contain relevant data for 508 nuclides: 42 actinides, 323 nuclides of fission products and 143 activation material nuclides. The neutron cross-sections are from ENDF/B-V and were processed into a 46 energy-group structure using TCP. Fission products with the same names, but resulting from different fission fuels are traced separately.

6. RESTRICTIONS OR LIMITATIONS

None noted.

7. TYPICAL RUNNING TIME

For a typical hybrid reactor with 2 fission fuel zones and 25 intervals, the run time of radioactivity-related calculation on the IBM 4381 is about 400 seconds.

8. COMPUTER HARDWARE REQUIREMENTS

The code runs on an IBM 4381 and requires approximately 8 megabytes of virtual memory and 4 megabytes of core storage.

9. COMPUTER SOFTWARE REQUIREMENTS

FDKR runs under the VM/SP operating system (Release 4.0) using the IBM VS Fortran compiler.

10. REFERENCE

Y. Yan-Xin, F. Kai-Ming, H. Jin-Hua, "FDKR: A Radioactivity Calculation Code For Fission, Fusion and Hybrid Reactors," Southwestern Institute of Physics, People's Republic of China (March 1988).

11. CONTENTS OF CODE PACKAGE

Included is the referenced document and one (1.2MB) DOS diskette containing the Fortran source, data libraries, sample input and output. A binary library and executable module are also included.

12. DATE OF ABSTRACT

May 1989.