International Conference on Nuclear Data for Science and Technology 2010
J. Korean Phys. Soc. 59, 1084-1087
Paper ID: ND-1241
DOI: 10.3938/jkps.59.1084
PACS: 25.40.-h, 24.10.-i
Overview of the 2009 Release of the Evaluated Nuclear Data Library (ENDL2009)
D. Brown1, B. Beck1, M. -A Descalle1, R. Hoffman1, E. Ormand1, P. Navratil1, N. Summers1, I. Thompson1, R. Vogt1, W. Younes1 and R. Barnowski2
1 Lawrence Livermore National Laboratory, Box 808, Livermore CA, 94550, USA
2 Nuclear Engineering and Radiological Sciences Department, University of Michigan, Ann Arbor MI, 48109-2104 USA
Abstract
The Lawrence Livermore National Laboratory (LLNL) Physics Division has produced the next iteration of LLNL’s evaluated nuclear database, ENDL2009. ENDL2009 is the second in a series of major ENDL library releases designed to support LLNL’s current and future nuclear data needs. This library includes 585 distinct transport-ready evaluations in the neutron sub-library and many physics improvements for energy, nuclear security and stockpile stewardship. In building this library, we adopted the best of the world’s nuclear data efforts including the ENDF/B-VII.0, JENDL and other libraries. A large fraction of the neutron sub-library and all of the charged-particle sub-libraries consist of new evaluations developed at LLNL for the ENDL2009 library. In addition, ENDL2009 supports new features such as energy-dependent Q values from fission, support for unresolved resonances and average momentum deposition. Finally, this release is our most highly tested release as we have strengthened our already rigorous testing regime by adding tests against LANL Activation Ratio Measurements and many new critical assemblies. Our testing is now being incorporated into our development process and is serving to guide database improvements.
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