NEA-0449 ESTOQ.

ESTOQ, 1st Collision Source Calculation for Program DOT in R-Z Geometry

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, FEATURES, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: ESTOQ.

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2. COMPUTERS

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Program name	Package id	Status	Status date
ESTOQ	NEA-0449/01	Tested	01-MAR-1976

Machines used:

Package ID	Orig. computer	Test computer
NEA-0449/01	CDC 6600	CDC 6600

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Starting with a top boundary source, volume distributed first collision sources in r-z geometry are calculated.

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4. METHOD OF SOLUTION: Numerical integration of the integral transport equation.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The program uses dynamic storage allocation technique. Therefore, restrictions are only imposed by the main storage and extended core storage (ECS) available.

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6. TYPICAL RUNNING TIME

About 200 seconds CPU for 5 energy groups, 320 intervals, 77 angular directions, and a highly specific boundary source geometry.

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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM

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8. RELATED AND AUXILIARY PROGRAMS

The program generates a first collision source tape for input to the 2-dimensional discrete ordinates program DOT.

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9. STATUS

Package ID	Status date	Status
NEA-0449/01	01-MAR-1976	Tested at NEADB

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10. REFERENCES

- W. Klumpp, G. Pfister and G. Rexer:
  'ESTOQ - Ein Programm zur Berechnung von Erststossquellen zur
  Vermeidung des Ray-Effektes beizweidimensionalen SN-Rechnungen.'Institut fuer Kernenergetik an der Universitaet Stuttgart
  Bericht nr. J - 17 (1973).

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11. MACHINE REQUIREMENTS: CDC machine with extended core storage (ECS).

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0449/01	FORTRAN-IV

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: CDC
6600 SCOPE.

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14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS: Variable COMMON.

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15. NAME AND ESTABLISHMENT OF AUTHOR

      W. Klumpp and G. Rexer
      Institut fuer Kernenergetik
      Universitaet Stuttgart
      Pfaffenwaldring 31
      7000 Stuttgart-80
      Germany, F.R.

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16. MATERIAL AVAILABLE

NEA-0449/01

File name	File description	Records
NEA0449_01.001	SOURCE PROGRAM (F4)	1734
NEA0449_01.002	SAMPLE PROBLEM INPUT DATA	34
NEA0449_01.003	SAMPLE PROBLEM PRINTED OUTPUT	490

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17. CATEGORIES

B. Spectrum Calculations, Generation of Group Constants and Cell Problems
C. Static Design Studies

Keywords: collisions, r-z, transport theory, two-dimensional.