CCC-0050: LRSPC, Proton High-Energy Loss in Matter

OECD Nuclear Energy Agency / L'Agence pour l'énergie nucléaire

OECD-OCDE

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CCC-0050 LRSPC. (Abstract last modified 07-DEC-2001)

LRSPC, Proton High-Energy Loss in Matter

Abstract Table of Contents:

OPERATING SYSTEM

OTHER RESTRICTIONS

1. NAME OR DESIGNATION OF PROGRAM - LRSPC.

2. COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -

To request or retrieve programs click on the one of the active versions below. A password and special authorization is required.

Explanation of the status codes.

Program-name Package-ID Status LRSPC CCC-0050/01 Arrived

Machines used: Package-ID Orig.Computer Test Computer CCC-0050/01 IBM 7090

3. DESCRIPTION OF PROGRAM OR FUNCTION - The LRSPC program is designed to estimate the energy loss, due to ionization and excitation, and the range of charged particles passing through matter. The code treats protons in elements or mixtures composed of elements with atomic numbers ranging from 1 to 100. The results for protons are generally valid from 1 MeV to 100 GeV. The code may be extended to treat other charged particles such as muons, pions, hyperons, deuterons, tritons and alphas by changing the particle mass, charge and range at 2 MeV.

4. METHOD OF SOLUTION - Stopping power is calculated from the Bethe-Bloch equation with shell and density corrections included. Range is calculated by integrating the reciprocal of the stopping power from an initial value at 2 MeV. The K-shell correction is taken from Walske's data. The L-shell and higher shell corrections are adjusted to fit low energy measurements fro 30 elements. The density correction is calculated by a method similar to that of Sternheimer, differing chiefly in the large number of electron shells considered.
LRSPC computes improved proton range and stopping power data for use in the proton penetration code, LPPC (CCC-0051). It is packages separately and may be requested independently.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM -
Number of elements in mixture  </=  10
Atomic number of element       </= 100
Number of energy points        </= 500

6. TYPICAL RUNNING TIME - The code runs approximately 16 seconds per element for values at 230 energies. Estimated running time of sample problem: 2 minutes, 20 seconds.

7. UNUSUAL FEATURES OF THE PROGRAM -

8. RELATED AND AUXILIARY PROGRAMS -

9. STATUS
CCC-0050/01: 07-DEC-2001 Masterfiled Arrived

10. REFERENCES  -
CCC-0050/01:
- C.W. Hill et al.:
  Data Compilation and Evaluation of Space Shielding Problems,
  Vol. I, Range and Stopping Power Data
  ER-7777 (July 1965)

11. MACHINE REQUIREMENTS - The code is designed for the IBM 7090 and 7094. It requires standard input, output and punch tapes, two working tapes, and an on-line printer for operator instructions.

12. PROGRAMMING LANGUAGE(S) USED -
CCC-0050/01: FAP (IBM-7090)

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED - The code requires a standard IBM Fortran II monitor or the IBM IBSYS operating system with a FAP assembler and a Fortran II compiler.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS -

15. NAME AND ESTABLISHMENT OF AUTHORS -
Contributed by:
                Radiation Shielding Information Center
                Oak Ridge National Laboratory
                Oak Ridge, Tennessee, U. S. A.
Developed by:
                Lockheed-Georgia Company
                Nuclear Analysis Department
                Marietta, Georgia
                U.S.A.

16. MATERIAL AVAILABLE -
CCC-0050/01:
F01 LRSPC Source
F02 LRSPC Data
F03 LRSPC Library
F04 LRSPC Output
report                   ER-7777 (July 1965)                        REPPT

17. CATEGORIES -

- J. Gamma Heating and Shield Design
- V. Particle Accelerators and High Voltage Machines

Keywords: ABSORPTION, ACCELERATORS, HIGH-ENERGY REACTIONS, PROTONS

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