IAEA0894 SUPERTOG-LTT.

SUPERTOG-LTT, SUPERTOG with Tabular Elastic Scattering Anisotropy from ENDL

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: SUPERTOG-LTT.

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2. COMPUTERS

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Program name	Package id	Status	Status date
SUPERTOG-LTT	IAEA0894/01	Tested	03-AUG-1988

Machines used:

Package ID	Orig. computer	Test computer
IAEA0894/01	IBM 370 series	IBM 3090

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3. DESCRIPTION OF PROGRAM OR FUNCTION

SUPERTOG-LTT is a modified version of SUPERTOG which accepts elastic scattering anisotropy data either in terms of Legendre expansion coefficients or in the form of tabular values of the actual density function. SUPERTOG-LTT thus can process all the materials in the ENDLF library as well as those in ENDF/B-IV.

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4. METHOD OF SOLUTION

SUPERTOG-LTT calculates the Legendre coefficients of the density function from the tabular input values by an approximation by means of orthonormal polynomials.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

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6. TYPICAL RUNNING TIME

The conversion procedure of anisotropy data from tabular form to Legendre expansion coefficients requires less than 15 % of the total running time of SUPERTOG.

IAEA0894/01

NEA-DB executed the test case included in this package on IBM 3090 and VAX-11/780 computers. The following execution times were required: 9 seconds (IBM); 2 minutes (VAX).

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7. UNUSUAL FEATURES OF THE PROGRAM:

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8. RELATED AND AUXILIARY PROGRAMS

The group constant library ZZ-L26P3S34 (IAEA0870) for neutron shielding calculations has been generated by SUPERTOG-LTT.

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9. STATUS

Package ID	Status date	Status
IAEA0894/01	03-AUG-1988	Tested at NEADB

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10. REFERENCES:

IAEA0894/01, included references:

- G. Bojkov, V. Gadzhokov and K. Ilieva:
  Modification of the SUPERTOG Program Applied to Libraries with
  Tabulated Elastic-Scattering Anisotropy Densities.
  INDC(BUL)-6/GV  (February 1982)

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11. MACHINE REQUIREMENTS:

IAEA0894/01

800K (IBM); peak working set size: 1955 (VAX-11/780).

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
IAEA0894/01	FORTRAN-IV

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:

IAEA0894/01

MVS/XA (IBM 3090); VMS V4.6 (VAX-11/780).

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHORS

          G. BOJKOV, V. GADZHOKOV, K. ILIEVA
          Institute of Nuclear Research and Nuclear Power
          Bulgarian Academy of Science
          Sofia, Bulgaria

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16. MATERIAL AVAILABLE

IAEA0894/01

File name	File description	Records
IAEA0894_01.001	INFORMATION FILE	71
IAEA0894_01.002	SUPERTOG SOURCE PROGRAM	10958
IAEA0894_01.003	LTTAS1 SOURCE PROGRAM	587
IAEA0894_01.004	MAIN ROUTINE FOR TEST CASE	17
IAEA0894_01.005	JCL FOR RUNNING THE SAMPLE CASE ON IBM	67
IAEA0894_01.006	COMMAND FILE TO RUN SAMPLE CASE ON VAX	13
IAEA0894_01.007	TEST CASE INPUT DATA	9
IAEA0894_01.008	TEST CASE OUTPUT DATA (NAT CU)	3311
IAEA0894_01.009	TEST CASE OUTPUT DATA (NAT PB)	2624

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17. CATEGORIES

B. Spectrum Calculations, Generation of Group Constants and Cell Problems

Keywords: anisotropic scattering, elastic scattering, shielding.