NEA-1185 ZZ-SCALE-LIB.

ZZ SCALE-LIB, Neutron-Group Constants Library from JEF-1 Using NPTXS, XLACS, XLACS-2 Programs

NAME, COMPUTER, PROBLEM, SOLUTION, RESTRICTIONS, FEATURES, AUXILIARIES, STATUS, REFERENCES, REQUIREMENTS, LANGUAGE, OTHER RESTRICTIONS, AUTHOR, MATERIAL, CATEGORIES

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1. NAME

ZZ-SCALE-LIB.

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2. COMPUTERS

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Program name	Package id	Status	Status date
ZZ-SCALE-LIB	NEA-1185/01	Tested	25-NOV-2002

Machines used:

Package ID	Orig. computer	Test computer
NEA-1185/01	IBM 3090	PC Pentium III 500

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3. DESCRIPTION

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FORMAT: format of an AMPX-II Master Library Interface

NUMBER OF GROUPS: 219 neutron energy groups (78 thermal)

NUCLIDES: H, B, C, N, O, F, Na, Mg, Al, Si, Cl, K, Ca, Cr, Mn, Fe, Ni, Sr, Zr, Mo, Sn, Gd, Hf, U, Pu, Am

ORIGIN: JEF-1

WEIGHTING SPECTRUM: Two weighting functions have been used:

Fission-1/E-Maxwellian with a temperature of 300 K
1/(σt*E)

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The library is given in the format of an AMPX-II Master Library Interface.

The source of microscopic data is JEF-1; 64 materials were processed with values of σp.

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4. METHODS

The library has been generated by the AMPX-II modules NPTXS, XLACS and XLACS-2.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

219 neutron energy groups (78 thermal), l=3 Legendre angular momentum.

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7. UNUSUAL FEATURES OF THE PROGRAM

Many kinds of problems were encountered in processing JEF-1 (which adopts the ENDF/B-V format) with AMPX-II (especially designed to process ENDF/B-IV formatted data). For some nuclei, pre-processing tasks had to be performed in order to solve specific problems, e.g. format conversion of angular data from shortened ENDF/B-V format to explicit ENDF/B-IV. Most of the tasks could successfully be solved with the code CRECTJ5, while in some cases specific codes had to be written.

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8. RELATED OR AUXILIARY PROGRAMS

CRECTJ5; AIM, RADE, NITAWL.

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9. STATUS

Package ID	Status date	Status
NEA-1185/01	25-NOV-2002	Tested at NEADB

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10. REFERENCES

NEA-1185/01, included references:

- E. Cuccoli, G.C. Panini and F. Siciliano:
  A 219 Neutron Group Set from JEF-1 in the AMPX Master Library
  Interface Format.
  JEF/DOC-181  (May 1987)

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11. HARDWARE REQUIREMENTS

The size is approximately ASCII: 49 Mb, Binary: 18 Mb

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12. PROGRAMMING LANGUAGE(S) USED

No specified programming language

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

This library is derived from JEF-1.

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15. NAME AND ESTABLISHMENT OF AUTHORS

E. Cuccoli, G.C. Panini