Computer Programs

NEA-1130 AIRGAMMA.

NEA-1130 AIRGAMMA.

AIRGAMMA, External Gamma-Ray Exposure from Radioactive Cloud

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: AIRGAMMA.

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2. COMPUTERS

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Program name	Package id	Status	Status date
AIRGAMMA	NEA-1130/01	Tested	05-OCT-1989

Machines used:

Package ID	Orig. computer	Test computer
NEA-1130/01	FACOM M-380	IBM 3083

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3. DESCRIPTION OF PROGRAM OR FUNCTION

AIRGAMMA calculates quickly the external exposure to gamma rays from a radioactive cloud.

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4. METHOD OF SOLUTION

The external exposure is calculated by interpolating the normalized doses providing on the basis of the Gaussian plume model.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM: Memory requirement is 30 Kbytes.

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6. TYPICAL RUNNING TIME

About 1.6 seconds are required to calculate the sample case on FACOM-M380.

NEA-1130/01

NEA-DB ran the test cases included in this package on an IBM 3083 computer. The following CPU times (in seconds) were required: 1.3 (case 1); 26.6 (case 2); 169.5 (case 3).

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7. UNUSUAL FEATURES OF THE PROGRAM:

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8. RELATED AND AUXILIARY PROGRAMS:

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9. STATUS

Package ID	Status date	Status
NEA-1130/01	05-OCT-1989	Tested at NEADB

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10. REFERENCES:

NEA-1130/01, included references:

- A. Hidaka and T. Iijima:
  AIRGAMMA -  A Computer Code for Quick Assessment of the Cloudshine
  Doses due to Accidental Releases of Radioactive Materials.
  JW 182-1 & 182-2 (1985) (in Japanese)
- User's Manual for the AIRGAMMA Computer Code

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11. MACHINE REQUIREMENTS

The following Hardware components are required:
Card reader for input
Line printer for output
Main storage: 700 Kbytes on FACOM-M380.

NEA-1130/01

To run the test cases on IBM 3083, 656K bytes of main storage are required.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-1130/01	FORTRAN-IV

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED: FACOM OSIV /
MSP20.

NEA-1130/01

MVS/XA (IBM 3083).

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHORS

          Akihide Hidaka and Tshinori Iijima
          Environmental Evaluation Laboratory
          Japan Atomic Energy Research Institute

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16. MATERIAL AVAILABLE

NEA-1130/01

File name	File description	Records
NEA1130_01.001	Information file	132
NEA1130_01.002	Fortran source for creating binary library	12
NEA1130_01.003	Character image library data	24360
NEA1130_01.004	AIRGAMMA Fortran source	708
NEA1130_01.005	Assembler source of DATE and TIME routines	145
NEA1130_01.006	Sample input (Case 1)	60
NEA1130_01.007	Sample input (Case 2)	60
NEA1130_01.008	Sample input (Case 3)	60
NEA1130_01.009	Sample output (Case 1)	2011
NEA1130_01.010	Sample output (Case 2)	2907
NEA1130_01.011	Sample output (Case 3)	2235
NEA1130_01.012	JCL used at Data Bank	21
NEA1130_01.013	Author's sample output (Case 1)	306

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17. CATEGORIES

G. Radiological Safety, Hazard and Accident Analysis

Keywords: gamma radiation, plumes, radioactive release.