Windowed multipole sensitivity to target accuracy of the optimization procedure
This paper compares the accuracy of the windowed multipole direct Doppler broadening method to that of the ENDF-B/VII.1 libraries that come with MCNP6. Various windowed multipole libraries were generated with different maximum allowed relative errors. Then, the libraries were compared to the MCNP6 d...
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| Format: | Article |
| Language: | en_US |
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Taylor & Francis
2017
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| Online Access: | http://hdl.handle.net/1721.1/107398 https://orcid.org/0000-0002-3210-5806 https://orcid.org/0000-0003-1459-7672 https://orcid.org/0000-0003-2497-4312 |
| _version_ | 1811084031697092608 |
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| author | Josey, Colin Forget, Benoit Robert Yves Smith, Kord S. |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Josey, Colin Forget, Benoit Robert Yves Smith, Kord S. |
| author_sort | Josey, Colin |
| collection | MIT |
| description | This paper compares the accuracy of the windowed multipole direct Doppler broadening method to that of the ENDF-B/VII.1 libraries that come with MCNP6. Various windowed multipole libraries were generated with different maximum allowed relative errors. Then, the libraries were compared to the MCNP6 data via resonance integral and through single assembly Monte Carlo analysis. Since the windowed multipole uses resonance parameters, resonance integrals are only affected by the number of resonances included in the library and not by the order of the background fitting function. The relative performance of each library with varying maximum allowed error was evaluated. It was found that setting a maximum target relative error of 0.1% in the library provided highly accurate data that closely matches the MCNP6 data for all temperatures of interest, while still having suitable computational performance. Additionally, a library with a maximum relative error of 1% also provided reasonable accuracy on eigenvalue and reaction rates with a noticeable improvement on performance, but with a few statistically significant differences with the MCNP6 data. |
| first_indexed | 2024-09-23T12:43:30Z |
| format | Article |
| id | mit-1721.1/107398 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:43:30Z |
| publishDate | 2017 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | mit-1721.1/1073982022-09-28T09:40:54Z Windowed multipole sensitivity to target accuracy of the optimization procedure Josey, Colin Forget, Benoit Robert Yves Smith, Kord S. Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Josey, Colin Forget, Benoit Robert Yves Smith, Kord S. This paper compares the accuracy of the windowed multipole direct Doppler broadening method to that of the ENDF-B/VII.1 libraries that come with MCNP6. Various windowed multipole libraries were generated with different maximum allowed relative errors. Then, the libraries were compared to the MCNP6 data via resonance integral and through single assembly Monte Carlo analysis. Since the windowed multipole uses resonance parameters, resonance integrals are only affected by the number of resonances included in the library and not by the order of the background fitting function. The relative performance of each library with varying maximum allowed error was evaluated. It was found that setting a maximum target relative error of 0.1% in the library provided highly accurate data that closely matches the MCNP6 data for all temperatures of interest, while still having suitable computational performance. Additionally, a library with a maximum relative error of 1% also provided reasonable accuracy on eigenvalue and reaction rates with a noticeable improvement on performance, but with a few statistically significant differences with the MCNP6 data. United States. Department of Energy (Consortium for Advanced Simulation of Light Water Reactors (CASL), contract No. DE-AC05-00OR22725) United States. Department of Energy (Center for Exascale Simulation of Advanced Reactors (CESAR), contract No. DE-AC02-06CH11357)) United States. Department of Energy (Nuclear Energy University Programs Graduate Fellowship, contract No. DE-NE-0000102) 2017-03-13T15:02:52Z 2017-03-13T15:02:52Z 2015-04 2015-01 Article http://purl.org/eprint/type/JournalArticle 0022-3131 1881-1248 http://hdl.handle.net/1721.1/107398 Josey, Colin, Benoit Forget, and Kord Smith. “Windowed Multipole Sensitivity to Target Accuracy of the Optimization Procedure.” Journal of Nuclear Science and Technology 52, no. 7–8 (April 23, 2015): 987–992. https://orcid.org/0000-0002-3210-5806 https://orcid.org/0000-0003-1459-7672 https://orcid.org/0000-0003-2497-4312 en_US http://dx.doi.org/10.1080/00223131.2015.1035353 Journal of Nuclear Science and Technology Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Taylor & Francis Prof. Forget via Chris Sherratt |
| spellingShingle | Josey, Colin Forget, Benoit Robert Yves Smith, Kord S. Windowed multipole sensitivity to target accuracy of the optimization procedure |
| title | Windowed multipole sensitivity to target accuracy of the optimization procedure |
| title_full | Windowed multipole sensitivity to target accuracy of the optimization procedure |
| title_fullStr | Windowed multipole sensitivity to target accuracy of the optimization procedure |
| title_full_unstemmed | Windowed multipole sensitivity to target accuracy of the optimization procedure |
| title_short | Windowed multipole sensitivity to target accuracy of the optimization procedure |
| title_sort | windowed multipole sensitivity to target accuracy of the optimization procedure |
| url | http://hdl.handle.net/1721.1/107398 https://orcid.org/0000-0002-3210-5806 https://orcid.org/0000-0003-1459-7672 https://orcid.org/0000-0003-2497-4312 |
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