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CCC-0170 DISDOS.

DISDOS, Kerma in Model Man from External Gamma Source

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1. NAME OR DESIGNATION OF PROGRAM:  DISDOS.
Calculation of Dose Distribution in Human Phantoms Irradiated by Ex- ternal Photon Sources.
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2. COMPUTERS
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Program name Package id Status Status date
DISDOS/HOPHO CCC-0170/01 Tested 01-MAR-1979
DISDOS/INHOPHO CCC-0170/02 Tested 01-MAR-1979

Machines used:

Package ID Orig. computer Test computer
CCC-0170/01 IBM 360 series IBM 360 series
CCC-0170/02 IBM 360 series IBM 360 series
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3. DESCRIPTION OF PROBLEM OR FUNCTION

The absorbed dose (actually Kerma) is calculated for simplified human phantoms (elliptical cylinders) irradiated by external photon sources. The phantoms are divided into three parts: head, trunk, and legs. Three source distributions are considered: collimated beam, point source, and isotropic irradiation; other sources may be considered since the codes are segmented.
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4. METHOD OF SOLUTION

Monte Carlo calculations provide estimates of the dose and the standard deviation in each zone. The source energy  spectrum may be discrete, uniformly distributed in an energy range,  or given by a piece-wise continuous function.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Pair production is accounted for in the field of the nuclei only. Electron binding corrections to Compton scattering are omitted. The body has 22 organs.
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6. TYPICAL RUNNING TIME

The sample problems ran on the IBM 360/91 as  follows:
        DISDOS-HOPHO       25 seconds
        DISDOS-INHOPHO     1 minute.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS

    DISDOS-HOPHO:Homogeneous Phantom Model.
    DISDOS-INHOPHO:Inhomogeneous Phantom Model.
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9. STATUS
Package ID Status date Status
CCC-0170/01 01-MAR-1979 Tested at NEADB
CCC-0170/02 01-MAR-1979 Tested at NEADB
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10. REFERENCES:
CCC-0170/01, included references:
- L. Koblinger:
  Two Codes for Calculation of Dose Distribution in Human Phantoms
  Irradiated by External Photon Sources
  KFKI-71-12 (February 1971), and Informal Notes.
CCC-0170/02, included references:
- L. Koblinger:
  Two Codes for Calculation of Dose Distribution in Human Phantoms
  Irradiated by External Photon Sources
  KFKI-71-12 (February 1971), and Informal Notes.
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11. MACHINE REQUIREMENTS

The codes were designed for the ICL 1095, and have been converted to run on the IBM 360.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
CCC-0170/01 FORTRAN-IV
CCC-0170/02 FORTRAN-IV
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

Standard FORTRAN  compilers for the two different operating system may be used.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHOR

Central Research Institute for Physics, Budapest, Hungary
Contributed the original code and
HEW/FDA Bureau of Radiological Health, Rockville, Maryland
did the conversion necessary for IBM 360 version.
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16. MATERIAL AVAILABLE
CCC-0170/01
File name File description Records
CCC0170_01.001 SOURCE PROGRAM (F4,EBCDIC) 803
CCC0170_01.002 SUBROUTINE 'ICLOCK' (ASSEMBLER) 15
CCC0170_01.003 DD CARDS 3
CCC0170_01.004 SAMPLE PROBLEM INPUT DATA 14
CCC0170_01.005 SAMPLE PROBLEM PRINTED OUTPUT 136
CCC-0170/02
File name File description Records
CCC0170_02.001 SOURCE PROGRAM (F4,EBCDIC) 951
CCC0170_02.002 SUBROUTINE 'ICLOCK' (ASSEMBLER) 15
CCC0170_02.003 DD CARDS 3
CCC0170_02.004 SAMPLE PROBLEM INPUT DATA 15
CCC0170_02.005 SAMPLE PROBLEM PRINTED OUTPUT 96
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17. CATEGORIES
  • G. Radiological Safety, Hazard and Accident Analysis

Keywords: Monte Carlo method, doses, irradiation, photons.