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NESC0600 EGAD (Abstract last modified 26-AUG-1982)
1.
NAME OR DESIGNATION OF PROGRAM - EGAD 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.
Machines used:
Package-ID Orig.Computer Test Computer
NESC0600/01 IBM 3033 IBM 3033
3.
DESCRIPTION OF PROBLEM OR FUNCTION - EGAD calculates gamma dose 4.
METHOD OF SOLUTION - The plume of radioactive material is assumed 5.
RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM - 6.
TYPICAL RUNNING TIME - Running time to evaluate integrals is 7.
UNUSUAL FEATURES OF THE PROGRAM - EGAD provides an efficient means 8.
RELATED AND AUXILIARY PROGRAMS - 9.
STATUS 10.
REFERENCE - 11.
MACHINE REQUIREMENTS - 64K bytes of main storage on IBM 3033. 12.
PROGRAMMING LANGUAGE(S) USED - 13.
OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED - OS370/033. 14.
OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS - 15.
NAME AND ESTABLISHMENT OF AUTHOR - 16.
MATERIAL AVAILABLE - 17.
CATEGORIES - Keywords: DOSE RATES, GAMMA RADIATION, RADIOACTIVITY
Program-name Package-ID Status
EGAD NESC0600/01 Tested
integrals to a ground level receptor, for incremental values of
the vertical dispersion parameter sigma-z, as a function of gamma
energy and spatial distribution of the radioactive material. The
dose integrals are representative of sector averages since the
distribution of material is assumed to be Gaussian in the
vertical, homogeneous in the horizontal, and bounded between
ground level and an inversion lid. Calculated dose integrals are
independent of radioactive decay, transport velocity, downwind
distance, and sector width. Space attenuation and buildup are
taken into account.
to remain constant in shape and size during passage over a
receptor point. The space distribution of material is then
represented as parallel line sources. The line contributions are
integrated analytically by transforming to Bessel and related
functions, reducing the spatial distribution to a vertical plane
at the receptor point. Plane integrations are then performed by
Gaussian quadratures.
typically less than 30 msec for each energy and receptor point.
NEA-DB executed the test case on IBM 3033 in 2 CP seconds.
of compiling tabular data of dose integrals as a function of
incremental values of energy and the vertical dispersion
parameter. These data may then be interpolated for specific
values of the variables resulting in large computational savings
if large amounts of meteorology data are to be processed.
NESC0600/01: 26-AUG-1982 Tested at NEADB
NESC0600/01:
- R.E. Cooper:
EGAD - A Computer Program to Compute Dose Integrals from External
Gamma Emitters
DP-1304 (September 1972)
NESC0600/01: FORTRAN-IV
R. E. Cooper
Savannah River Laboratory
E. I. duPont de Nemours and Company, Inc.
Aiken, South Carolina 29801
NESC0600/01:
NESC0600_01.003 EGAD INFORMATION FILE 29 records
NESC0600_01.004 EGAD SOURCE PROGRAM (FORTRAN-4) 222 records
NESC0600_01.005 EGAD INPUT DATA FOR TEST CASE 6 records
NESC0600_01.006 EGAD OUTPUT OF TEST CASE 29 records
NESC0600_01.007 EGAD JCL FOR TEST CASE 11 records
- G. Radiological Safety, Hazard and Accident Analysis
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