1. NAME AND TITLE
DDXCODES: One-, Two- and Three-Dimensional Transport Codes Using Multigroup Double-Differential Form Cross Sections
MCFILEF: A pre-processor code which produces a control file for input to SPINPTF.
SPINPTF: A pre-processor which prepares an input file for PROF-DD.
PROF-DD: A code system to generate multigroup double-differential form cross sections (DDX) by processing basic nuclear data file in ENDF/B-IV or ENDF/B-V format.
DDXLIBMK: A program which reads the DDX data library and edits it for input to the transport codes.
ANISN-DD: A one-dimensional discrete ordinates transport code.
REACT: A program to calculate reaction rates from ANISN-DD output.
MONTA: A program which calculates the angular transfer probability for input to ANISN-DD.
MORSE-DD: A three-dimensional Monte Carlo transport code.
DDXLIB: Double-differential cross section library, available as RSIC package DLC-123.
Japan Atomic Energy Research Institute, Ibaraki-ken, Japan.
3. CODING LANGUAGE AND COMPUTER
FORTRAN 77; FACOM M-380.
4. NATURE OF PROBLEM SOLVED
The DDXCODES were written to accurately predict the transport of neutrons by using the multigroup double-differential form cross sections. These types of cross sections can correctly take into account the energy-angle correlated reaction kinematics. Hence, the transport phenomenon in materials with highly anisotropic scattering is accurately calculated.
5. METHOD OF SOLUTION
The MCFILEF code prepares a control file for input to SPINPTF. SPINPTF then prepares input for PROF-DD by combining the control file and other input data. The PROF-DD code calculates the multigroup cross sections and angle-energy distributions (DDX). The program DDXLIBMK then reads the DDX formatted library and edits it into a specified format for input to ANISN-DD or MORSE-DD.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
8. COMPUTER HARDWARE REQUIREMENTS
DDXCODES will run on the FACOM M-380. With minor modifications, the codes can be modified to run on the IBM mainframes.
9. COMPUTER SOFTWARE REQUIREMENTS
DDXCODES are written in FORTRAN 77.
a. Included in the package:
T. Mori, M. Nakagawa, M. Sasaki. One-, Two-, Three-Dimensional Transport Codes Using Multigroup Double-Differential Form Cross Sections, JAERI 1314, Ibaraki-ken, Japan, (November 1988).
M. Nakagawa, and T. Mori. MORSE-DD: A Monte Carlo Code Using Double Differential Form Cross Sections, JAERI-M 84-126, JAERI, Ibaraki-ken, Japan, (July 1984).
11. CONTENTS OF CODE PACKAGE
Included are the referenced documents and one DS/HD 5.25-inch diskette (1.2 MB), containing the FORTRAN 77 sources and sample problem.
12. DATE OF ABSTRACT
KEYWORDS: COMPLEX GEOMETRY; DISCRETE ORDINATES; GAMMA-RAY; MONTE CARLO; MULTIGROUP; NEUTRON; ONE-DIMENSION; TWO-DIMENSIONS