DLC-0168 ZZ-LA100.

1. NAME OR DESIGNATION OF PROGRAM:  ZZ-LA100.

3. DESCRIPTION OF PROGRAM OR FUNCTION


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  FORMAT: ENDF/B-VI (MCNP)

  NUMBER OF GROUPS: --

NUCLIDES: H-1, Be-9, C-12, O-16, Al-27, Si-28, Fe, W, and U-238.
  ORIGIN: ENDF/B-VI

  WEIGHTING SPECTRUM: --

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ZZ-LA100 Evaluated Nuclear Data Library for Transport Calculations Involving Incident Neutrons and Protons of Energy Up to 100 MeV. This data base was developed for use in Monte Carlo or discrete ordinate transport codes, for example, the general Monte Carlo code MCNP. Various modules of the NJOY processing code system have been enhanced to permit processing of the ENDF/B-VI formatted evaluations into both continuous-energy and multi-group format. The transport data files for all 18 projectile-plus-target systems have been processed through NJOY, and coupled multi-particle, multi-group transport libraries for MCNP now exist.  In addition, pointwise MCNP libraries to 100 MeV for incident neutrons have been prepared for the nine targets. The production version of the MCNP code is being modified to handle the new pointwise libraries. The production version of MCNP already supports the use of coupled multi-group libraries.

4. METHOD OF SOLUTION

The library is based on nuclear theory/model calculations with parameterizations obtained by matching calculations with experimental data, mainly using the PSR-125/GNASH  statistical/preequilibrium/fission theory code. The library includes neutron- and proton-induced reactions for H1, Be9, C12, O16, Al27, Si28, Fe, W, and U238 and specifies the production cross sections and energy-angle correlated spectra of emitted neutrons, protons, alpha-particles, photons, and other significant charged particles. See reference LA-11753-MS for details.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

6. TYPICAL RUNNING TIME:  Depends on the problem.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS:

10. REFERENCES

- E.D. Arthur:
  The GNASH Preequilibrium-Statistical Model Code
  lectures presented during the Workshop on Applied Nuclear Theory
  and Nuclear Model Calculations for Nuclear Technology
  Applications
  International Centre for Theoretical Physics, Triest, Italy, 15
  February - 18 March 1988 (LA-UR 88-283).
- P.G. Young, E.D. Arthur, and M.B. Chadwick:
  Comprehensive Nuclear Model Calculations - Introduction to the
  Theory and Use of the GNASH Code
lectures presented during the Workshop on Computation and Analysis    of Nuclear Data Relevant to Nuclear Energy and Safety
  International Centre for Theoretical Physics, Triest, Italy, 10
  February - 13 March 1992 (LA-UR 92-205).
- R.E. MacFarlane, D.W. Muir, and R.M. Boicourt:
  The NJOY Nuclear Data Processing System
  Los Alamos National Laboratory report LA-9303-M (1982) v. I and
  II, (1987) v. III, (1985) v. IV.
- R.E. MacFarlane:
  Introducing NJOY 89, presented at the OECD Seminar-Workshop on
  NJOY and THERMIS
  Nuclear Energy Agency Data Bank, Saclay, France, June 20-21, 1989
  (LA-UR-89-2057 (1989)).
- J.F. Briesmeister, Ed.,:
MCNP - A General Monte Carlo Code for Neutron and Photon Transport    Version 3A
  Los Alamos National Laboratory manual LA-7396-M Rev. 2 (Sept.
  1986).
- J.F. Briesmeister:
  MCNP3B Newsletter
  LANL Memo. X-6:JFB-88-292 (July 18, 1988).

- P.G. Young et al.:
  Transport Data LIbraries for Incident Proton and Neutron Energies
  to 100-MeV
  LA-11753-MS (July 1990).

11. MACHINE REQUIREMENTS:

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

15. NAME AND ESTABLISHMENT OF AUTHORS

          Los Alamos National Laboratory
          Los Alamos, New Mexico

File name	File description	Records
DLC0168_01.001	LA100.INF Information file	33
DLC0168_01.002	README.RSI information file	20
DLC0168_01.003	LIB100.N neutron x-sec library (ASCII)	55139
DLC0168_01.004	LIB100.P proton x-sec library (ASCII)	29259