CCC-0257 DELFIC-TES.

DELFIC-TES, Gamma Doses from Nuclear Explosion Radioactive Clouds

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM 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 AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: DELFIC-TES.

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2. COMPUTERS

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Machines used:

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3. DESCRIPTION OF PROGRAM OR FUNCTION

DELFIC-TES computes the transit gamma exposure from the airborne cloud resulting from a nuclear burst for fixed targets located on or above the earth's surface.

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4. METHOD OF SOLUTION

The system is based on a method of producing "snapshots" of the moving cloud of airborne particles during the transport process of DELFIC. Each particle in each snapshot is then assigned an activity and these data are used to calculate transit exposure by employing an energy-dependent buildup factor technique.

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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

The model employed is an extension of the Department of Defense Land Fallout Prediction System computer program DELFIC.

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9. STATUS

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10. REFERENCES:

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11. MACHINE REQUIREMENTS:

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12. PROGRAMMING LANGUAGE(S) USED

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED: MVS-SP (IBM3081).

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHORS

Contributed by:   Radiation Safety Information Computational Center
                  Oak Ridge National Laboratory
                  Oak Ridge, Tennessee, U. S. A.
Developed by:     U.S. Army Ballistic Research Laboratories
                  Aberdeen Proving Ground, Maryland, U. S. A.

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16. MATERIAL AVAILABLE

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17. CATEGORIES

G. Radiological Safety, Hazard and Accident Analysis

Keywords: gamma radiation, nuclear explosions, radiation doses, radioactive clouds.