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NEA-1006 ASDIC.

ASDIC, Fast Reactor Hexagonal 3 Component Fuel Pin Diffusion Coefficient

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:  ASDIC.
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2. COMPUTERS
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Machines used:

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3. DESCRIPTION OF PROGRAM OR FUNCTION

ASDIC calculates radial and axial diffusion coefficients in a fast reactor hexagonal fuel assembly composed of three media, fuel pins, coolant (which may be voided) and hexagonal outer tube. The zero buckling approximation is assumed.
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4. METHOD OF SOLUTION

The program performs a numerical calculation of an analytical formula involving special functions and integrals.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  Bidimensional
coolant gaps must exist.
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6. TYPICAL RUNNING TIME

The running time is typically less than 1 CPU second (CDC7600).
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS

MOBIDIC calculates radial and axial diffusion coefficients in a fast reactor INFINITE lattice, with a non-zero buckling.
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9. STATUS

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10. REFERENCES:
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11. MACHINE REQUIREMENTS

To run the test case on CDC CYBER 740, 63,300 (octal) words of main storatge are required.
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12. PROGRAMMING LANGUAGE(S) USED

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

SCOPE-2.
The test case was executed on CDC CYBER 740 under NOS 1.4-531.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

         P. Benoist and T. Duracz
         C.E.N Saclay
         France
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16. MATERIAL AVAILABLE
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17. CATEGORIES

Keywords: cell calculation, fast reactors, neutron transport theory.