UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY
Procedure of criticality calculations and uncertainty evaluations currently has several insufficiencies which could lead to potential non–conservativeness. Paper discuss and describes possibilities of elimination of these insufficiencies and thereby ensuring safely sub–critical results of calculatio...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2018-12-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5230 |
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| _version_ | 1850111603959136256 |
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| author | Matěj Šikl František Havlůj |
| author_facet | Matěj Šikl František Havlůj |
| author_sort | Matěj Šikl |
| collection | DOAJ |
| description | Procedure of criticality calculations and uncertainty evaluations currently has several insufficiencies which could lead to potential non–conservativeness. Paper discuss and describes possibilities of elimination of these insufficiencies and thereby ensuring safely sub–critical results of calculations. Selection of experiments for validation based on similarity coefficients between systems acquired from TSUNAMI-IP is used for this purpose. TSUNAMI-IP operates with sensitivity of multiplication factor to cross sections of individual isotopes and reactions between compared systems. Moreover, TSUNAMI-IP determines uncertainty of calculations brought in using insufficiently similar experiments. Within research, effects of variable parameters used in calculations inputs are investigated. In conclusion optimized suggested approach for validations and uncertainty evaluation using TSUNAMI module from SCALE based on knowledge acquired within research is described. |
| format | Article |
| id | doaj-art-31761795ce4741e59ec247d45d40e7bd |
| institution | OA Journals |
| issn | 2336-5382 |
| language | English |
| publishDate | 2018-12-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-31761795ce4741e59ec247d45d40e7bd2025-08-20T02:37:36ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822018-12-01190303510.14311/APP.2018.19.00304298UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGYMatěj ŠiklFrantišek HavlůjProcedure of criticality calculations and uncertainty evaluations currently has several insufficiencies which could lead to potential non–conservativeness. Paper discuss and describes possibilities of elimination of these insufficiencies and thereby ensuring safely sub–critical results of calculations. Selection of experiments for validation based on similarity coefficients between systems acquired from TSUNAMI-IP is used for this purpose. TSUNAMI-IP operates with sensitivity of multiplication factor to cross sections of individual isotopes and reactions between compared systems. Moreover, TSUNAMI-IP determines uncertainty of calculations brought in using insufficiently similar experiments. Within research, effects of variable parameters used in calculations inputs are investigated. In conclusion optimized suggested approach for validations and uncertainty evaluation using TSUNAMI module from SCALE based on knowledge acquired within research is described.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5230validation, subcriticality, TSUNAMI, similarity between systems, penalty, pool storage |
| spellingShingle | Matěj Šikl František Havlůj UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY Acta Polytechnica CTU Proceedings validation, subcriticality, TSUNAMI, similarity between systems, penalty, pool storage |
| title | UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY |
| title_full | UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY |
| title_fullStr | UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY |
| title_full_unstemmed | UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY |
| title_short | UNCERTAINTY EVALUATION IN CRITICALITY CALCULATIONS USING THE TSUNAMI METHODOLOGY |
| title_sort | uncertainty evaluation in criticality calculations using the tsunami methodology |
| topic | validation, subcriticality, TSUNAMI, similarity between systems, penalty, pool storage |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5230 |
| work_keys_str_mv | AT matejsikl uncertaintyevaluationincriticalitycalculationsusingthetsunamimethodology AT frantisekhavluj uncertaintyevaluationincriticalitycalculationsusingthetsunamimethodology |