**1. NAME AND TITLE OF DATA LIBRARY**

GICX40: Coupled 42-Neutron, 21-Gamma-Ray Group Cross Sections for 40
Elements in Group Independent Form for Fusion Reactor Calculations.

**2. NAME AND TITLE OF DATA RETRIEVAL PROGRAMS**

GICX40 SET: Cross Section Editing Program.

**3. CONTRIBUTOR**

Japan Atomic Energy Research Institute, Tokyo, Japan.

**4. HISTORICAL BACKGROUND AND INFORMATION**

Two sets of libraries, GICX40 and GICX40V4, for 40 nuclides of interest in fusion reactor nuclear
design, were developed. They are extensively used for neutronics calculations related to fusion
reactors in JAERI and elsewhere in Japan. Both sets have the same 42-neutron, 21-gamma-ray energy
group structure with up to P_{5} Legendre scattering terms. Modifications of the multigroup cross section
processing codes were made in the course of development of the cross section sets.

**5. APPLICATION OF THE DATA**

The GICX40 Set is used in coupled neutron and gamma-ray transport calculations and employing
ANISN in group independent option (ID2 = 1).

**6. SOURCE AND SCOPE OF DATA**

There are 40 nuclides of interest in fusion reactor nuclear designs. Not only the candidate nuclides
in the materials of blanket, shield, magnet, etc., of pure fusion reactors but also 5 fissile nuclides
(^{232}Th, ^{235}U, ^{238}U, ^{237}Np, and 239Pu) are included to enable the evaluations of fusion-fission hybrid
reactors. The nuclides are:

^{6}Li, ^{7}Li, ^{12}C, ^{16}O, ^{4}He, Nb, Mo, Cr, Ni, Fe, ^{1}H, ^{2}H, ^{3}He, ^{9}Be, ^{10}B, ^{14}N, ^{27}Al, V, Cu, Pb, ^{232}Th, ^{235}U,
^{239}Pu, ^{237}Np, Mg, K, Ca, ^{11}B, Cl, Na, Cd, Ta, ^{182}W, ^{183}W, ^{184}W, ^{186}W, F, ^{238}U, Si, Ti.

**7. DISCUSSION OF THE DATA RETRIEVAL PROGRAM**

GICX40 Set can be readily used as the input to ANISN in group independent option (ID2 = 1) just
by converting the format from BCD to binary form. To use GICX40 Set in DOT-3.5 or MORSE,
some rearrangement of data is required.

**8. DATA FORMAT AND COMPUTER**

EBCDIC card images; IBM 360/370, FACOM 230/75.

**9. TYPICAL RUNNING TIME**

GICX40 can readily be used in ANISN just by BCD to binary conversion.

**10. REFERENCE**

Yasushi Seki and Hiromasa Iida, "Coupled 42-Group Neutron and 21-Group Gamma Ray Cross
Section Sets for Fusion Reactor Calculations," JAERI-M 8818 (April 1980).

**11. CONTENTS OF LIBRARY**

Included are the referenced document and one (1.44MB) DOS diskette or 1 tape cartridge in TAR
format which contains the GICX40 cross section library.

**12. DATE OF ABSTRACT**

April 1985.

**KEYWORDS: ** COUPLED NEUTRON-GAMMA-RAY CROSS SECTIONS; CTR
NEUTRONICS CROSS SECTIONS; GAMMA-RAY CROSS SECTIONS;
MULTIGROUP CROSS SECTIONS; NEUTRON CROSS SECTIONS; WORKSTATION