Calculation of the effect of fission gas xenon on threshold displacement energy of $UO_2$ using molecular dynamics simulation = 분자 동역학 시뮬레이션을 이용한 산화우라늄의 문턱 격자이탈 에너지에 대한 제논 기체 생성물의 영향 계산

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For decades, Uranium Dioxide($UO_2$) has been a major nuclear fuel. The physical properties of high-burnup $UO_2$ are degraded due to irradiation in nuclear reactors. There were some studies using molecular dynamics simulation on Threshold Displacement Energy to evaluate the radiation resistance of $UO_2$, but none of those studies considered about Xenon, the richest fission gas element in the $UO_2$ matrix. In this study, the threshold displacement energy of Xe- inserted $UO_2$ cell is calculated in order to evaluate the influence of Xenon atoms on radiation resistance of $UO_2$. Additionally, the relationship of threshold displacement energy reduction and the distance between Xenon atoms and PKA Uranium atoms are modeled to investigate the average threshold displacement energy of the Xenon implanted $UO_2$ system.
Advisors
Ryu, Hojinresearcher류호진researcher
Description
한국과학기술원 :원자력및양자공학과,
Publisher
한국과학기술원
Issue Date
2020
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2020.2,[iii, 29 p. :]

Keywords

Molecular Dynamics▼aFission Gas▼aUranium Dioxide▼aThreshold Displacement Energy; 분자 동역학▼a핵분열 생성 기체▼a산화우라늄▼a문턱 격자이탈 에너지

URI
http://hdl.handle.net/10203/283817
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=909898&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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