1. NAME AND TITLE

MARTHA: Monte Carlo Response Function for Sodium Iodide Photon Detectors

2. CONTRIBUTOR

Japan Atomic Energy Research Establishment, Tokai-mura, Japan

3. CODING LANGUAGE AND COMPUTER

Fortran H Extended (P00232I036000

4. NATURE OF PROBLEM SOLVED

Monte Carlo

5. METHOD OF SOLUTION

Photon processes considered are photo-electric, Compton Scatering and pair production. Electrons are tracked vis multi-scattering theory. Energies up to 10 MeV are possible with results verified up to 6.13 MeV.

6. RESTRICTIONS OR LIMITATIONS

None stated

7. TYPICAL RUNNING TIME

Not stated

8. COMPUTER HARDWARE REQUIREMENTS

Developed on an IBM 360 system.

9. COMPUTER SOFTWARE REQUIREMENTS

A functional Fortran 77 compiler

10. REFERENCES

Included in package:

K. Saito and S. Moriuchi, “Monte Carlo Calculation of Accurate Response Functions for a NaI(T1) Detector for Gamma-Rays,” Nucl. Instrum. Methods, ZSS, 299-308 (June 1981)

K. Saito and S. Moriuchi, “Monte Carlo Calculation of Accurate Response Functions for a NaI(T1) Detector for Gamma-Rays, and Analysis of Pulse Height Spectrum Formation Mechanism,” JAERI-M 9741 (September 1981))

11. CONTENTS OF CODE PACKAGE

SIncluded on a single CD, documentation and source code. Executables not included

12. DATE OF ABSTRACT

March 1986.