|Program name||Package id||Status||Status date|
|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.
|Package ID||Status date||Status|
|NEA-0584/01||01-SEP-1980||Tested at NEADB|
P. Kirkegaard and L. Loevborg:
Program System for Computation of the Terrestial Gamma Radiation Field Risoe Report no 393 (1979).
|Package ID||Computer language|
|File name||File description||Records|
|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_01.011||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.