1. NAME AND TITLE
SPAR: Calculation of Stopping Powers and Ranges for Muons, Charged Pions, Protons and Heavy Ions.
Oak Ridge National Laboratory, Oak Ridge, Tennessee.
3. CODING LANGUAGE AND COMPUTER
FORTRAN IV; IBM 360/370 (A) and CDC 6600 (B).
4. NATURE OF PROBLEM SOLVED
SPAR computes the stopping powers and ranges for muons, pions, protons, and heavy ions in any nongaseous medium at energies from zero to several hundred GeV.
5. METHOD OF SOLUTION
A different calculational procedure is used to compute the stopping powers in each of three (beta,z) regions, where beta is the speed of the particle relative to the speed of light and z is the nuclear charge of the particle. The procedures are described in the code document.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
On the IBM 360/91, about one second is required to compute stopping powers and ranges at about 100 energy points for one stopping medium. The packaged sample problem executed in 10 seconds.
8. COMPUTER HARDWARE REQUIREMENTS
SPAR is operable on the IBM 360/370 computers with standard I-O. It uses 96 K storage in the GO step.
9. COMPUTER SOFTWARE REQUIREMENTS
A FORTRAN IV compiler is required.
T. W. Armstrong and K. C. Chandler, "SPAR, A FORTRAN Program for Computing Stopping Powers and Ranges for Muons, Charged Pions, Protons, and Heavy Ions," ORNL-4869 (May 1973).
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
KEYWORDS: STOPPING POWER; RANGE; CHARGED PARTICLES; MESON; PROTON; HEAVY IONS