1. NAME AND TITLE
RACC: A Code System for Computing Radioactivity-Related Parameters for Fusion Reactor
Argonne National Laboratory, Argonne, Illinois.
3. CODING LANGUAGE AND COMPUTER
Fortran IV; IBM 370/3033.
4. NATURE OF PROBLEM SOLVED
RACC provides a comprehensive computational capability for the calculation of radioactivity and
radioactivity-related parameters (e.g., biological hazard measure, decay heat, decay gamma-ray yield, etc.)
in general fusion reactor systems. This capability can be utilized in nearly all types of fusion reactor design
and analysis including very near-term machines and commercial reactors. RACC can enable the fusion
community to routinely include the radioactivity-related aspects as an important part of safety,
environmental, and economic analysis.
5. METHOD OF SOLUTION
The basic computational technique used by RACC is Gear's stiffly stable matrix method, but the Adams method is available, also. The RACC code features a versatile geometric capability including slab, sphere, cylinder, and torus in multidimensions. In addition to the regular geometries, an option is available for an arbitrary geometry (IGE = 0), presumably useful for radioactivity calculations with Monte Carlo neutron transport fluxes for which the system configuration cannot be represented by any of the four regular geometries.
RACC is capable of interfacing with most of the standard multigroup, multidimensional
neutron/photon transport code systems currently available for fusion-system application. All input
arrays are read using the FIDO routines.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
No study has been made by RSIC of typical running times for RACC.
8. COMPUTER HARDWARE REQUIREMENTS
RACC is operable on the IBM 370/3033 computer.
9. COMPUTER SOFTWARE REQUIREMENTS
A Fortran IV compiler is required.
J. Jung, "Theory and Use of the Radioactivity Code RACC," ANL/FPP/TM-122 (May 1979).
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (1.2MB) DOS diskette which contains the source
code and sample problem input and output.
12. DATE OF ABSTRACT
February 1982; revised February 1983.
KEYWORDS: NEUTRON; GAMMA-RAY SOURCE; SLAB; SPHERICAL GEOMETRY; TOROIDAL GEOMETRY; CTR; ACTIVATION; RADIONUCLIDES; ISOTOPE INVENTORY