ENDF/B-VII.1 versus ENDF/B-VII.0: What's Different?

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Recently the new ENDF/B-VII.1 library was released; this completely replaces the earlier ENDF/B-VII.0 library. One of the first questions we ask about a new library is: What's Different? Here I attempt to at least partially answer this question. I present results in both tabulated form (so you can quickly determine if any evaluations of interest to you have changed), and graphic form (so that you can see how much evaluations have changed and in what energy ranges). For the table I have compared what I refer to as the ENDF neutron data, namely MF=1 through 6. Here I did a ... continued below

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Cullen, D E March 20, 2012.

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Description

Recently the new ENDF/B-VII.1 library was released; this completely replaces the earlier ENDF/B-VII.0 library. One of the first questions we ask about a new library is: What's Different? Here I attempt to at least partially answer this question. I present results in both tabulated form (so you can quickly determine if any evaluations of interest to you have changed), and graphic form (so that you can see how much evaluations have changed and in what energy ranges). For the table I have compared what I refer to as the ENDF neutron data, namely MF=1 through 6. Here I did a character-by-character comparison of the same sections (MF/MT) that appear I both ENDF/B-VII.0 and VII.1; here I found differences in 170 evaluations. For the plots I have only compared the total cross sections for all evaluations that are common to both libraries, and I found that of the 423 evaluations in ENDF/B-VII.1, 120 of these have total cross sections that differ by 1% or more from the evaluation of the same isotope in ENDF/B-VII.0. This should be considered only a preliminary comparison; obviously there can be more subtle important differences that do not effect of total cross sections. Here I present plots comparing the total cross section of these 120 isotopes. The plots are only broad overviews of the total cross sections over their entire energy range. If you have interest in more detailed plots for specific evaluations, you can download the evaluations [1,2] and the PREPRO [3] codes I used to prepare and view the data. This is all I needed to do my comparisons, and is all you should need to do any more detailed comparisons to meet your individual needs.

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PDF-file: 44 pages; size: 2.3 Mbytes

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  • Report No.: LLNL-TR-548633
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/1047779 | External Link
  • Office of Scientific & Technical Information Report Number: 1047779
  • Archival Resource Key: ark:/67531/metadc828279

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  • March 20, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • Nov. 23, 2016, 6:18 p.m.

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Cullen, D E. ENDF/B-VII.1 versus ENDF/B-VII.0: What's Different?, report, March 20, 2012; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc828279/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.