1. NAME AND TITLE OF DATA LIBRARY

MACKLIB-IV: A Library of Nuclear Response Functions Generated with the MACK-V Computer Program from ENDF/B-IV.

2. NAME AND TITLE OF DATA RETRIEVAL PROGRAMS

MACKLIB-IV: Retrieval Program.

RIPOF: Retrieval Program.

3. CONTRIBUTOR

Argonne National Laboratory, Argonne, Illinois.

4. HISTORICAL BACKGROUND AND INFORMATION

The library is the new format of the "MACK-Activity Table" which uses a fixed position for each specific response function. The new library is a significant upgrade from the earlier version, MACKLIB. The response functions included in the library are neutron kerma factor, gamma kerma factor, gas production and tritium-breeding functions, and all important reaction cross sections.

5. APPLICATION OF THE DATA

A new library of processed nuclear data for neutronics analysis of nuclear systems, MACKLIB-IV, has been generated. The library includes all nuclear response functions for all materials presently of interest in fusion-functions for all applications for 49 materials. MACKLIB can be used with any neutron and gamma-ray flux spectra to calculate the spatial distribution of neutron, gamma, and total heating, rates of atomic displacements, tritium breeding ratio, gas production, and other reactions of interest. The library can be utilized for calculating the nuclear responses in one-, two-, and three-dimensional geometries for any spatial distribution of mixtures of materials.

6. SOURCE AND SCOPE OF DATA

It is expected that the kinetic energy of the fission fragments has an important energy dependence for incident neutron energies in the 5 to 20 MeV range.

7. DISCUSSION OF THE DATA RETRIEVAL PROGRAM

The data retrieval program was written to read the library in FIDO card image format (the distribution format for the library), to perform the user's request, and to write a new library in FIDO card image format or ANISN binary tape. It is written in standard Fortran but contains some Assembler routines.

8. DATA FORMAT AND COMPUTER

Card images; IBM 360/370 (D00060I037002).

9. TYPICAL RUNNING TIME

To compile and execute the sample problem required 18 seconds using the IBM 3033 computer.

10. REFERENCES

Y. Gohar and M. A. Abdou, "MACKLIB-IV, A Library of Nuclear Response Functions Generated with the MACK-IV Computer Program from ENDFB-IV," (March 1978).

Sample Input Instructions for RIPOF.

11. CONTENTS OF LIBRARY

Included are the referenced documents and two DS/HD 3.5-in. (1.44 MB) diskettes in self-extracting compressed DOS files which contains 13 files.

12. DATE OF ABSTRACT

October 1984.