TENDL-2012-ACE: TALYS-Based Cross Section Library for Use with MCNPX.
MAKXSF: Preparer of Cross Sections distributed with the LANL MCNP code system.
NRG - Nuclear Research and Consultancy Group, Petten, The Netherlands.
The TENDL-2012 library (TALYS-based Evaluated Nuclear Data Library), developed at NRG, was processed to the ACE format for use with Monte Carlo codes. It consists of a set of 348 neutron data files for isotopes from F-19 to Po-209, stable and long-lived nuclides, completely and consistently evaluated using the TALYS-1.2 nuclear reaction code package (NEA-1737 and PSR-548). For all isotopes and incident particles, the same methodology is applied to obtain cross sections, angular distributions, double differential data, gamma production data, and isomeric production cross sections covariance information. The result is a nuclear data library with mutually consistent reaction and covariance information for all isotopes. Full information is available on ftp://ftp.nrg.eu/pub/www/talys/tendl2012/tendl2012.html.
The processing step is extremely important. It allows the preparation of the nuclear data evaluations for specific codes and applications. The most well-known processing codes are NJOY, PREPRO and CALENDF. Many other exist. For TENDL-2012, these three codes have been used:
•CALENDF: it is used for resonance reconstruction based on global statistical parameters. The latest version (2012) was used.
•PREPRO: it is used to extract cross sections and other quantities from the ENDF files and to produce a series of plots. PREPRO-2010 was used.
•NJOY: it is used for the production of plots, ACE files and processed covariances. Version 99.364 was used.
The TENDL-2012 library has been checked with the CHECKR, FIZCON and PSYCHE checking programs and successfully processed with NJOY-99.161 into ACE format to create this library for use in MCNP5 and MCNPX calculations. ACE files are provided for neutrons, protons, deuterons, tritons, helions and alpha particles.
The ACE files were produced at T=293 K up to 20 MeV.
PROTON SUBLIBRARY - A total number of 2419 ACE files.
DEUTERON SUBLIBRARY - A total number of 2427 ACE files.
TRITON SUBLIBRARY - A total number of 2348 ACE files.
HELIUM-3 SUBLIBRARY - A total number of 2429 files.
ALPHA SUBLIBRARY - A total number of 2426 ACE files.
PROTON SUBLIBRARY - A total number of 2419 ACE files.
GAMMA SUBLIBRARY – A total number of 2385 ACE files.
MAKXSF, which is distributed with MCNPX, can be used to convert MCNP Type 1 (ASCII) data to Type 2 (binary).
ASCII card images; UNIX workstation, PC, or Mac (D00266MNYCP00).
The ASCII-to-binary conversion can generally be accomplished within a few seconds, even for large data files. MCNP run times vary depending on a number of factors.
a. Documentation available with library
D. Rochman and and A. J. Koning, “TENDL-2009: on Evaluations and Monte Carlo Covariances,” Nuclear Research and Consultancy Group NRG, P.O. Box 25, 1755 ZG Petten, The Netherlands (September 23, 2009).
A. J. Koning and D.
Rochman, ``Modern Nuclear Data Evaluation: Straight from Nuclear Physics to Applications'',
Proceedings of the International Conference on Nuclear Data for Science and
Technology, April 26 - 30, 2010, Jeju, Korea, Journ. Kor. Phys.
Soc. 59, no. 23, 773 (2011) available via download at:
http://www.kps.or.kr/jkps/abstract_view.asp?articleuid=D7F186FC-DB78-405F-B1E9-320099DB6785&globalmenu=3&localmenu=10.
b. Other useful documentation
A. J. Koning and D. Rochman, TENDL-2008: Consistent TALYS-based Evaluated Nuclear Data Library Including Covariance Data, JEFF-DOC 1262 (November 17, 2008).
A. J. Koning, S. Hilaire and M. C. Duijvestijn, “TALYS-1.0,” Proceedings of the International Conference on Nuclear Data for Science and Technology, Nice, France, eds. O. Bersillon, F. Gunsing, E. Bauge, R. Jacqmin, and S. Leray, EDP Sciences, 2008, p. 211 (22-27 April 2007).
A. J. Koning, “New working methods for nuclear data evaluation: how to make a nuclear data library?,” Proceedings of the International Conference on Nuclear Data for Science and Technology, Nice, France, eds. O. Bersillon, F. Gunsing, E. Bauge, R. Jacqmin, and S. Leray, EDP Sciences, 2008, p. 679-684 (22-27 April 2007).
A. J. Koning and D. Rochman, “Towards sustainable nuclear energy: Putting nuclear physics to work,” Ann. Nuc. En. 35 (2008) 2024.
Experimental Nuclear Reaction Data (EXFOR / CSISRS), http://www.nndc.bnl.gov/exfor/exfor00.htm
S. F. Mughabghab, “Atlas of Neutron Resonances: Thermal Cross Sections and Resonance Parameters,” Elsevier Publisher, Amsterdam, 2006.
M. C. Duijvestijn and A. J. Koning, “New intermediate-energy nuclear data libraries for Fe,” Ann. Nuc. En. 33, 1196 (2006).
A. J. Koning and M. C. Duijvestijn, “New nuclear data evaluations for Ge isotopes,” Nucl. Instr. Meth. B248, 197 (2006).
A. J. Koning, et al., “New nuclear data libraries for Pb and Bi and their impact on ADS design,” Nucl. Sci. Eng. 156, p. 357-390 (2007).
A. J. Koning and M.C. Duijvestijn, “New nuclear data evaluations for Ca and Sc isotopes,”Journal Nucl. Sci. Techn. 44, no.6, p. 823-837 (2007).
D. Rochman and A.J. Koning, Nucl. Inst. And Methods in Phys. Research A 589 (2008) 85.
The data libraries and the electronic document cited above in Section 10.a are transmitted in a WinZIP file which includes data libraries and xsdir files.
June 2013.
KEYWORDS: MCNP FORMAT; NEUTRON CROSS SECTIONS