ENDF/B-VII.0 Data Testing for Three Fast Critical Assemblies

Cullen, D E; Blomquist, R N; Brown, P N; Dean, C J; Dunn, M E; Lee, Y; Lent, E; MacFarlane, R; McKinley, S; Plechaty, E F; Sublet, J C

doi:10.2172/921339

Title: ENDF/B-VII.0 Data Testing for Three Fast Critical Assemblies

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Abstract

In this report we consider three fast critical assemblies, each assembly is dominated by a different nuclear fuel: Godiva (U235), Jezebel (Pu239) and Jezebel23 (U233) [1]. We first show the improvement in results when using the new ENDF/B-VII.0 data [2], rather than the older, now frozen, ENDF/B-VI.8 data [3]. We do this using what we call a one code/ multiple library approach, where results from one code (MCNP) are compared using two different data libraries (ENDF/B-VII.0 and VI.8). Next we show that MCNP results are not specific to this one code by using what we call a one data library/multiple code approach; for this purpose we invited many codes to submit results using the ENDF/B-VII.0 data; the most detailed results presented in this report compare MCNP and TART. The bottom line is that we have shown that using the new ENDF/B-VII.0 data library with a variety of transport codes, for the first time we are able to reproduce the expected K-eff values for all three assemblies to within the quoted accuracy of the models, namely 1.0 +/- 0.001. This is a BIG improvement compared to the results obtained using the older ENDF/B-VI.8 data library. Another important result of this studymore »« less

Authors:: Cullen, D E; Blomquist, R N; Brown, P N; Dean, C J; Dunn, M E; Lee, Y; Lent, E; MacFarlane, R; McKinley, S; Plechaty, E F; Sublet, J C

Publication Date:: Fri Jul 27 00:00:00 EDT 2007

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 921339

Report Number(s):: UCRL-TR-233310
TRN: US0800980

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Technical Report

Country of Publication:: United States

Language:: English

Subject:: 22 GENERAL STUDIES OF NUCLEAR REACTORS; ACCURACY; COMPUTER CODES; NUCLEAR FUELS; TESTING; TRANSPORT; ZERO POWER REACTORS

Citation Formats


                    Cullen, D E, Blomquist, R N, Brown, P N, Dean, C J, Dunn, M E, Lee, Y, Lent, E, MacFarlane, R, McKinley, S, Plechaty, E F, and Sublet, J C. ENDF/B-VII.0 Data Testing for Three Fast Critical Assemblies.  United States: N. p., 2007. 
        Web.  doi:10.2172/921339.

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                    Cullen, D E, Blomquist, R N, Brown, P N, Dean, C J, Dunn, M E, Lee, Y, Lent, E, MacFarlane, R, McKinley, S, Plechaty, E F, & Sublet, J C. ENDF/B-VII.0 Data Testing for Three Fast Critical Assemblies.  United States.  https://doi.org/10.2172/921339

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                    Cullen, D E, Blomquist, R N, Brown, P N, Dean, C J, Dunn, M E, Lee, Y, Lent, E, MacFarlane, R, McKinley, S, Plechaty, E F, and Sublet, J C. 2007.  
        "ENDF/B-VII.0 Data Testing for Three Fast Critical Assemblies".  United States.  https://doi.org/10.2172/921339.  https://www.osti.gov/servlets/purl/921339.

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@article{osti_921339,

  title        = {ENDF/B-VII.0 Data Testing for Three Fast Critical Assemblies},

  author       = {Cullen, D E and Blomquist, R N and Brown, P N and Dean, C J and Dunn, M E and Lee, Y and Lent, E and MacFarlane, R and McKinley, S and Plechaty, E F and Sublet, J C},

  abstractNote = {In this report we consider three fast critical assemblies, each assembly is dominated by a different nuclear fuel: Godiva (U235), Jezebel (Pu239) and Jezebel23 (U233) [1]. We first show the improvement in results when using the new ENDF/B-VII.0 data [2], rather than the older, now frozen, ENDF/B-VI.8 data [3]. We do this using what we call a one code/ multiple library approach, where results from one code (MCNP) are compared using two different data libraries (ENDF/B-VII.0 and VI.8). Next we show that MCNP results are not specific to this one code by using what we call a one data library/multiple code approach; for this purpose we invited many codes to submit results using the ENDF/B-VII.0 data; the most detailed results presented in this report compare MCNP and TART. The bottom line is that we have shown that using the new ENDF/B-VII.0 data library with a variety of transport codes, for the first time we are able to reproduce the expected K-eff values for all three assemblies to within the quoted accuracy of the models, namely 1.0 +/- 0.001. This is a BIG improvement compared to the results obtained using the older ENDF/B-VI.8 data library. Another important result of this study is that we have demonstrated that currently there are many computer codes that can accurately use the new ENDF/B-VII.0 data.},

  doi          = {10.2172/921339},

  url          = {https://www.osti.gov/biblio/921339},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jul 27 00:00:00 EDT 2007},

  month        = {Fri Jul 27 00:00:00 EDT 2007}

}

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