last modified: 03-JUL-1986 | catalog | categories | new | search |

CCC-0460 SPOT1.

SPOT1, Gamma-Ray Dose Rate from Cylindrical Source Volume

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1. NAME OR DESIGNATION OF PROGRAM:  SPOT1.
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2. COMPUTERS
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Program name Package id Status Status date
SPOT1 CCC-0460/01 Tested 03-JUL-1986

Machines used:

Package ID Orig. computer Test computer
CCC-0460/01 IBM 3033 IBM 3084Q
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3. DESCRIPTION OF PROGRAM OR FUNCTION

SPOT is an acronym for shielding problems according to Ono and Tsuruo. The motivation for developing this code was based largely on several facts: first, the  undefined region in the Rockwell method and consequently in the SDC  code (CCC-0060) had to be tested for before one could accept an answer as being valid in many situations; second, the coding of SDC  is difficult to follow due to many changes incorporated over the years; third, the methodology originally presented by Ono and Tsuruo (see reference) and developed by Shure and Wallace (see reference) is readily available and is reputedly more accurate.
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4. METHOD OF SOLUTION

The old Rockwell method treated the cylindrical source as a line segment embedded a given distance into the cylinder to account for the source self attenuation. The methodology employed by Ono and Tsuruo and used in this code is to approximate the cylindrical source by a segment of an annulus.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
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6. TYPICAL RUNNING TIME:
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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
CCC-0460/01 03-JUL-1986 Tested at NEADB
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10. REFERENCES

- Ono and A. Tsuruo,
  "An Approximate Calculation Method of Flux for Spherical and
   Cylindrical Sources with Slab Shield"
  Journal of Nuclear Science of Technology, June 1965.
- K. Shure and D.J. Wallace,
  "Compact Tables of Functions for Use in Shielding Calculations"
  Nuclear Science and Engineering, Technical Note, January 1975.
CCC-0460/01, included references:
- J.L. Kamphouse:
  SPOT1 User's Manual.  Informal Report (October 1980)
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11. MACHINE REQUIREMENTS:
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
CCC-0460/01 FORTRAN+ASSEMBLER
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

          J.L. Kamphouse
          Gilbert/Commonwealth Engineers
           and Consultants
          Reading, Pennsylvania
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16. MATERIAL AVAILABLE
CCC-0460/01
File name File description Records
CCC0460_01.001 information file 51
CCC0460_01.002 SPOT1 source (FORTRAN IV) 848
CCC0460_01.003 IDAY subroutine source (ASSEMBLER) 63
CCC0460_01.004 JCL to run sample problem 89
CCC0460_01.005 sample problem input 13
CCC0460_01.006 sample problem printed output 110
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17. CATEGORIES
  • J. Gamma Heating and Shield Design

Keywords: cylinders, dose rates, fission products, gamma radiation, shielding, uranium 235.