Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD
For an accurate and efficient time-dependent Monte Carlo (TDMC) neutron transport analysis, several advanced methods are newly developed and implemented in the Seoul National University Monte Carlo code, McCARD. For an efficient control of the neutron population, a dynamic weight window method is de...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323001584 |
| _version_ | 1797797182102831104 |
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| author | Sang Hoon Jang Hyung Jin Shim |
| author_facet | Sang Hoon Jang Hyung Jin Shim |
| author_sort | Sang Hoon Jang |
| collection | DOAJ |
| description | For an accurate and efficient time-dependent Monte Carlo (TDMC) neutron transport analysis, several advanced methods are newly developed and implemented in the Seoul National University Monte Carlo code, McCARD. For an efficient control of the neutron population, a dynamic weight window method is devised to adjust the weight bounds of the implicit capture in the time bin-by-bin TDMC simulations. A moving geometry module is developed to model a continuous insertion or withdrawal of a control rod. Especially, the history-based batch method for the TDMC calculations is developed to predict the unbiased variance of a bin-wise mean estimate. The developed methods are verified for three-dimensional problems in the C5G7-TD benchmark, showing good agreements with results from a deterministic neutron transport analysis code, nTRACER, within the statistical uncertainty bounds. In addition, the TDMC analysis capability implemented in McCARD is demonstrated to search the optimum detector positions for the pulsed-neutron-source experiments in the Kyoto University Critical Assembly and AGN-201K. |
| first_indexed | 2024-03-13T03:44:21Z |
| format | Article |
| id | doaj.art-2f29e81e615e49868a7ce1de801e8ee3 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-13T03:44:21Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-2f29e81e615e49868a7ce1de801e8ee32023-06-23T04:42:46ZengElsevierNuclear Engineering and Technology1738-57332023-07-0155727122722Advances for the time-dependent Monte Carlo neutron transport analysis in McCARDSang Hoon Jang0Hyung Jin Shim1Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of KoreaCorresponding author.; Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of KoreaFor an accurate and efficient time-dependent Monte Carlo (TDMC) neutron transport analysis, several advanced methods are newly developed and implemented in the Seoul National University Monte Carlo code, McCARD. For an efficient control of the neutron population, a dynamic weight window method is devised to adjust the weight bounds of the implicit capture in the time bin-by-bin TDMC simulations. A moving geometry module is developed to model a continuous insertion or withdrawal of a control rod. Especially, the history-based batch method for the TDMC calculations is developed to predict the unbiased variance of a bin-wise mean estimate. The developed methods are verified for three-dimensional problems in the C5G7-TD benchmark, showing good agreements with results from a deterministic neutron transport analysis code, nTRACER, within the statistical uncertainty bounds. In addition, the TDMC analysis capability implemented in McCARD is demonstrated to search the optimum detector positions for the pulsed-neutron-source experiments in the Kyoto University Critical Assembly and AGN-201K.http://www.sciencedirect.com/science/article/pii/S1738573323001584Time-dependent Monte CarloTransient analysisMcCARDHistory-based batch methodC5G7-TDPulsed-neutron-source experiment |
| spellingShingle | Sang Hoon Jang Hyung Jin Shim Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD Nuclear Engineering and Technology Time-dependent Monte Carlo Transient analysis McCARD History-based batch method C5G7-TD Pulsed-neutron-source experiment |
| title | Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD |
| title_full | Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD |
| title_fullStr | Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD |
| title_full_unstemmed | Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD |
| title_short | Advances for the time-dependent Monte Carlo neutron transport analysis in McCARD |
| title_sort | advances for the time dependent monte carlo neutron transport analysis in mccard |
| topic | Time-dependent Monte Carlo Transient analysis McCARD History-based batch method C5G7-TD Pulsed-neutron-source experiment |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323001584 |
| work_keys_str_mv | AT sanghoonjang advancesforthetimedependentmontecarloneutrontransportanalysisinmccard AT hyungjinshim advancesforthetimedependentmontecarloneutrontransportanalysisinmccard |