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IAEA0922 DOSKMF2.

DOSKMF2, Dose Rate Distribution in Co60 Gamma Irradiation Plants

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1. NAME OR DESIGNATION OF PROGRAM:  DOSKMF2.
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2. COMPUTERS
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Program name Package id Status Status date
DOSKMF2 IAEA0922/01 Tested 19-AUG-1988

Machines used:

Package ID Orig. computer Test computer
IAEA0922/01 ES-1040 IBM 3090
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3. DESCRIPTION OF PROGRAM OR FUNCTION

The DOSKMF2 code calculates dose rate distributions in gamma irradiation facilities with 60 Co sources. It has been developed as a tool for the evaluation of research units for the characterization, modification and optimization as well as for the simulation, planning design and evaluation of pilot and industrial facilities.
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4. METHOD OF SOLUTION

The basic model of DOSKMF2 contains the computation of the exposure rate, which is dependent on a system of  radiation sources (line and/or point sources) at one point of the radiation field. The geometric conditions are described by two co-ordinatee systems. The first is used to arrange the radiation sources and tubes; the second is used to describe the shielding layers in the form of concentric circles. The build-up factor is approximated by TAYLOR coefficients, also in the case of multi-layer configurations. Calculations of radiation fields in complex irradiation facilities are made by many organizational variants based on the basic model. The interpretation of the results is supported by some statistical calculations. It is possible to store  the calculated dose rate values for further processing.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The DOSKMF2 code is  presently limited to 40 irradiation tubes and 10 crossed shielding layers. This can be increased by changing dimension statements and input organization.
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6. TYPICAL RUNNING TIME

The running time varies between some seconds  and over 60 minutes, dependent on the size of the problem (number of tubes, sources, shielding layers and points of the radiation field).
IAEA0922/01
The test case included in this package was executed by  NEA-DB on an IBM 3090 computer with the PL/I Optimizing Compiler in  1 minute and 19 seconds of CPU time.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS

DOSKMF3 - Realizes the same calculation model like DOSKMF2 but
          allows the common use of Co-60 and/or Cs-137 sources.
          Moreover the INPUT-information is splitted into 4 files
          (system of irradiation tubes, system of irradiation
          sources coordinates of single points of the radiation
          field, calculation parameters).
IAEA0922/01
ISORADL             Plots dose rate distributions as isolines
POSADD              Adds dose rate distributions from DOSKMF2 for
                    box irradiation facilities
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9. STATUS
Package ID Status date Status
IAEA0922/01 19-AUG-1988 Tested at NEADB
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10. REFERENCES:
- M. Remer, Kernenergie, 29(1986), 88-91.
IAEA0922/01, included references:
- A. Remer:
  DOSKMF2 - Computer-Aided Evaluation of Radiation Field in Gamma
  Irradiation Plants.
  ZfI-Mitteilungen Nr. 95 (December 1984) (in German)
- A. Remer:
  Calculation of Dose Rate with Graphics Output for Combined
  Irradiation Plant.
  ZfI 6034J1  (December 31, 1982) (in German)
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11. MACHINE REQUIREMENTS

Minimum 100 Kbytes of main storage, card reader, line printer, magnetic tape or disc if postprocessing follows.
IAEA0922/01
The test case ran on IBM 3090 in 1084K byte of main storage.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
IAEA0922/01 PL/I
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:  OS/ES 6.1.
M9,MVT.
IAEA0922/01
MVS/XA (IBM 3090) with PL/I Optimizing Compiler Version 1 Release 5.1.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

         M. Remer
         Central Institute of Isotope and Radiation Research
         Academy of Sciences of the G.D.R.
         Leipzig, German Democratic Republic
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16. MATERIAL AVAILABLE
IAEA0922/01
File name File description Records
IAEA0922_01.001 INFORMATION FILE 56
IAEA0922_01.002 DOSKMF2 SOURCE PROGRAM 1397
IAEA0922_01.003 JCL TO RUN THE TEST CASE 50
IAEA0922_01.004 TEST CASE INPUT DATA 119
IAEA0922_01.005 TEST CASE OUTPUT DATA 293
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17. CATEGORIES
  • J. Gamma Heating and Shield Design

Keywords: dose rates, gamma radiation, irradiation, isotopes.