Program name | Package id | Status | Status date |
---|---|---|---|
GFX/GAMP1 | NEA-0584/01 | Tested | 01-SEP-1980 |
Machines used:
Package ID | Orig. computer | Test computer |
---|---|---|
NEA-0584/01 | IBM 3033 | IBM 3033 |
GFX/GAMP1 is a program system for computation of the terrestial gamma-radiation field. The complete data processing system with programs and files is called GB. The main FORTRAN programmes are 'GAMP1' and 'GFX'.
Solution of the plane one- dimensional photon transport equation in the case of two adjacent media. One medium represents a natural ground with uniformly distributed potassium, uranium or thorium gamma-ray emitters. The other medium is usually air with no radioactive contaminants.
GB, a system of computer programs intended for solution of the plane one-dimensional photon transport equation in the case of two adjacent media is described, and user's guide for the programs is given. One medium represents a natural ground with uniformly distributed potassium, uranium and thorium gamma-ray emitters. The other medium is usually air with no radioactive contaminants. The solution method is the double-P1 approximation with logarithmic energy spacing. The complete data-processing system 'GB' contains the transport theory code GAMP1, the code GFX for computation of scalar flux and dose rate, and a number of auxiliary programs and data files. Both wavelength and spatial integration are done semi-analytically. A logarithmic wavelength mesh is used. Spatial equations are approximated by aid of a semi-linear least squares technique.
The overall logarithmic wavelength mesh is considered as the most unusual feature of GAMP1 as compared to other gamma-ray transport codes. Although designed for the natural gamma-radiation field, the code could probably (after a few modifications) be of value also for shielding calculations.
The program system GB consists of a number of data files and the following 6 FORTRAN programs:
GAMP1 transport theory program.
GFX flux and dose program.
UPDATE updates the material data file.
PRINT prints a catalog of the material data file.
CROS computes gamma-ray cross-sections for a material.
DEEPFLUX limiting one medium form of GAMP1.
A detailed description of the programmes is given in the reference.
P. Kirkegaard and L. Loevborg:
Program System for Computation of the Terrestial Gamma Radiation Field Risoe Report no 393 (1979).
File name | File description | Records |
---|---|---|
NEA0584_01.001 | INFORMATION | 45 |
NEA0584_01.002 | JCL AT NEA | 130 |
NEA0584_01.003 | INSTRUCTION OF TEST CASE | 25 |
NEA0584_01.004 | GAMP1 SOURCE (F4,EBCDIC) | 740 |
NEA0584_01.005 | GFX SOURCE (F4,EBCDIC) | 314 |
NEA0584_01.006 | UPDATE SOURCE (F4,EBCDIC) | 348 |
NEA0584_01.007 | PRINT SOURCE (F4,EBCDIC) | 124 |
NEA0584_01.008 | CROS SOURCE (F4,EBCDIC) | 70 |
NEA0584_01.009 | DEEPFLUX SOURCE (F4,EBCDIC) | 238 |
NEA0584_01.010 | AUXILIARY ROUTINES | 358 |
NEA0584_01.011 | IDAY ROUTINE (ASSEMBLER) | 155 |
NEA0584_01.012 | MCMASTER (LIVERMORE GAMMA-RAY X-SEC DATA) | 9601 |
NEA0584_01.013 | EMITTERS(EMISSION DATA FOR THE RADIOELEMENT) | 190 |
NEA0584_01.014 | MATERIALS1 (BEFORE UPDATING) | 126 |
NEA0584_01.015 | MATERIALS2 (AFTER UPDATING) | 220 |
NEA0584_01.016 | TEST INPUT DATA FOR ALL THE PRoGRAMS | 56 |
NEA0584_01.017 | PRINTED OUTPUT OF GAMP1 | 218 |
NEA0584_01.018 | PRINTED OUTPUT OF GFX (2-MEDIA PROBLEM) | 24 |
NEA0584_01.019 | PRINTED OUTPUT OF DEEPFLUX | 179 |
NEA0584_01.020 | PRINTED OUTPUT OF GFX (DEEPFLUX SITUATION) | 26 |
NEA0584_01.021 | PRINTED OUTPUT OF UPDATE | 52 |
NEA0584_01.022 | PRINTED OUTPUT OF PRINT | 31 |
NEA0584_01.023 | PRINTED OUTPUT OF CROS | 12 |
Keywords: cross sections, doses, gamma radiation, one-dimensional, photon transport, transport theory.