NESC0265 RSAC

RSAC, Gamma Doses, Inhalation and Ingestion Doses, Fission Products Inventory after Fission Products Release

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM 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 AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: RSAC

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.

Program name	Package id	Status	Status date
RSAC	NESC0265/02	Tested	01-APR-1975

Machines used:

Package ID	Orig. computer	Test computer
NESC0265/02	IBM 370 series	IBM 370 series

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3. DESCRIPTION OF PROBLEM OR FUNCTION

RSAC generates a fission product inventory from a given set of reactor operating conditions and then computes the external gamma dose, the deposition gamma dose, and the inhalation-ingestion dose to critical body organs as a result of exposure to these fission products. Program output includes reactor operating history, fission product inventory, dosages, and ingestion parameters.

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4. METHOD OF SOLUTION

The fission product inventory generated by the reactor operating conditions and the inventory remaining at various times after release are computed using the equations of W. Rubinson in Journal of Chemical Physics, Vol. 17, pages 542-547, June 1949. The external gamma dose and the deposition gamma dose are calculated by determining disintegration rates as a function of space and time, then integrating using Hermite's numerical techniques for the spatial dependence. The inhalation-ingestion dose is determined by the type and quantity of activity inhaled and the biological rate of decay following inhalation. These quantities are integrated with respect to time to obtain the dosage. The ingestion dose is related to the inhalation dose by an input constant.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

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6. TYPICAL RUNNING TIME

About 6 minutes are required to run both sample problems.

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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
NESC0265/02	01-APR-1975	Tested at NEADB

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10. REFERENCES:

NESC0265/02, included references:

- R.L. Coates and N.R. Horton:
  RSAC - A Radiological Safety Analysis Computer Program
  IDO-17151 (May 1966).
- L.C. Richardson:
  Users Manual for FORTRAN Version of RSAC, A Radiological Safety
  Analysis Computer Program
  IDO-17261 (June 1968).

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11. MACHINE REQUIREMENTS: 150K bytes and 1 tape drive.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NESC0265/02	FORTRAN-IV

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED: OS/360.

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Subroutines CVI, DATE, and TIMSET, and function SL are written in Assembly language.

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15. NAME AND ESTABLISHMENT OF AUTHOR

                 L. C. Richardson
                 EG&G Idaho, Inc.
                 P. O. Box 1625
                 Idaho Falls, Idaho  83401

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16. MATERIAL AVAILABLE

NESC0265/02

File name	File description	Records
NESC0265_02.001	SOURCE PROGRAM EBCDIC (F4)	2375
NESC0265_02.002	ENVIRONMENTAL SUBROUTINES(EBCDIC,ASSEMBLER)	679
NESC0265_02.003	JCL	27
NESC0265_02.004	OVERLAY CARDS	17
NESC0265_02.005	SAMPLE PROBLEM 1 INPUT DATA	928
NESC0265_02.006	SAMPLE PROBLEM 2 INPUT DATA	37
NESC0265_02.007	SAMPLE PROBLEM 1 PRINTED OUTPUT	1005
NESC0265_02.008	SAMPLE PROBLEM 2 PRINTED OUTPUT	993

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17. CATEGORIES

G. Radiological Safety, Hazard and Accident Analysis

Keywords: dose rates, earth atmosphere, fission products, radioactivity.