Development of Advanced Rigorous Two-Step Code System for Evaluation of Radioactive Waste with High-Resolution Activation Calculation

김도현; 김지석; 이한림; 선광민; 신창호; 김종경

doi:https://doi.org/10.1016/j.net.2020.12.015

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자료유형: 학술저널

저자정보: 김도현 (한국원자력연구원) 김지석 (한국원자력연구원) 이한림 (한국원자력연구원) 선광민 (한국원자력연구원) 신창호 (한양대학교) 김종경 (한양대학교)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제6호

발행연도: 2021.6

수록면: 2,011 - 2,018 (8page)

DOI: https://doi.org/10.1016/j.net.2020.12.015

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Nowadays, evaluation of amounts and distributions of radioactive waste is an important preparatory stepin the process of nuclear reactor decommissioning. For tentative estimation of radioactive waste, a cellbasedrigorous 2 step (R2S) method usually is used; however, a poor resolution caused by the averagedflux and spectrum in a cell is still a great challenge because of leading to underestimated or overestimatedresults. To overcome the poor resolution, several systems were introduced. Neither system,however, provides any function for evaluation of radioactive waste amount and distribution. Thus, it isadditionally required to classify radioactive waste based on the results of activation calculation. In thisstudy, the advanced R2S (AR2S) system was developed. To verify the performance of the system, itsresults for a verification problem were compared with those of the cell-based R2S method. The resultsshowed good agreement, which is to say, within 2.0% relative error. Also, several characteristics of fine/coarse mesh were analyzed. To demonstrate the performance of the AR2S system, the radioactive wastefrom the Japan Power Demonstration Reactor (JPDR) was estimated, and the result indicated a highresolutiondistribution. Therefore, it is expected that the AR2S system will prove useful for preciseevaluation of radioactive waste

#Radioactive waste #Mesh-based activation #High resolution #R2S

참고문헌 (13)

참고문헌 신청

Y. Chen / 2002 / Rigorous MCNP based shutdown dose rate calculations:computational scheme, verification calculations and application to ITER / Fusion Eng. Des 63:107~114

A. Davis / 2010 / Benchmarking the MCR2S system for high-resolution activation dose analysis in ITER / Fusion Eng. Des 85:87~92

M. Majerle / 2012 / Verification and validation of the R2Smesh approach for the calculation of high resolution shutdown dose rate distribution / Fusion Eng. Des 87:443~447

T. Eade / 2015 / MCR2S unstructured mesh capabilities for use in shutdown dose rate analysis / Fusion Eng. Des 100:321~333

M. Pantelias / 2015 / Activation neutronics for a Swiss pressurized water reactor / Nucl. Technol 192(3):278~285

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소속기관 한국과학기술원

주요연구분야 공학 > 기계공학 > 기계공학 일반 공학 > 재료·에너지공학 > 원자력공학

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