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ESTS0109 IRDAM.

IRDAM, Interactive Rapid Dose Assessment from Reactor Accident Effluents

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1. NAME OR DESIGNATION OF PROGRAM:  IRDAM.
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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
IRDAM ESTS0109/01 Tested 30-AUG-1996

Machines used:

Package ID Orig. computer Test computer
ESTS0109/01 IBM PC PC Pentium 75
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3. DESCRIPTION OF PROGRAM OR FUNCTION

IRDAM is a micro-computer based program for rapidly assessing the radiological impact of an accident at a nuclear power plant.
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4. METHOD OF SOLUTION

IRDAM can handle a variety of accidental release scenarios. Information on meteorological conditions, source  term mixtures, and time periods for decay and plume passage are all  incorporated in the calculations. The activity or quantity of the release can be identified in several ways. Both elevated and ground-level releases can be accommodated. Dose equivalents are calculated for the whole body (5-cm depth) and thyroid (infant) at six fixed downwind distances between 500 and 20,000 meters. The IRDAM system is highly interactive and assumes that an operator has  expertise in radiation protection, but has little or no computer experience. By answering questions posed by IRDAM, an operator is guided through the input requirements of the calculations. The model has site-specific information and pre-programmed defaults that will enable the operator to make radiological dose estimates with a
minimum of informations.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
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6. TYPICAL RUNNING TIME:  The scenarios execute in seconds.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS

The code was tested with the IBM BASICA interpreter by RSIC.
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9. STATUS
Package ID Status date Status
ESTS0109/01 30-AUG-1996 Tested at NEADB
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10. REFERENCES:
ESTS0109/01, included references:
- R.W. Poeton et al.:
  Interactive Rapid Dose Assessment Model (IRDAM)
  User's Guide
  NUREG/CR-3012 (PNL-4510) Vol.1 (May 1983)
- R.W. Poeton et al.:
  Interactive Rapid Dose Assessment Model (IRDAM)
  Reactor Accident Assessment Methods
  NUREG/CR-3012 (PNL-4510) Vol.2 (May 1983)
- R.W. Poeton et al.:
  Interactive Rapid Dose Assessment Model (IRDAM)
  Scenarios for Comparing Dose Assessment Models
  NUREG/CR-3012 (PNL-4510) Vol.3 (May 1983)
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11. MACHINE REQUIREMENTS

The code was originally written for an Osborne computer using GW-Basic. However, the code will run on any PC which supports a reasonably standard version of the Basic language. The code runs on a variety of personal computers, including H-P and IBM PC/XT/AT computers. With some minor modifications the code will compile with a basic compiler.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
ESTS0109/01 BASIC
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:  DOS.
ESTS0109/01
NEA-DB installed the program on a Brett Pentium 75 desktop computer with 75 MHz and 16 MB of RAM and ran the test case  under Windows 95 / DOS 7.0. The source programs were compiled with GWBasic.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

    R.W. Poeton, M.P. Moeller, G.J. Laughlin, A.E. Desrosiers
    Pacific Northwest Lab.,
    Richland, (United States)
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16. MATERIAL AVAILABLE
ESTS0109/01
File name File description Records
ESTS0109_01.001 Information file 59
ESTS0109_01.002 BASIC source file - Start 36
ESTS0109_01.003 BASIC source file - Part one 325
ESTS0109_01.004 BASIC source file - Part two 909
ESTS0109_01.005 BASIC source file - Part three 386
ESTS0109_01.006 BASIC source file - Calculations 500
ESTS0109_01.007 DOS file-names 6
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17. CATEGORIES
  • G. Radiological Safety, Hazard and Accident Analysis
  • R. Environmental and Earth Sciences

Keywords: accidents, environmental impacts, radiation doses, radioactive effluents, radionuclide migration.