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Journal of Tsinghua University(Science and Technology)    2022, Vol. 62 Issue (10) : 1675-1680     DOI: 10.16511/j.cnki.qhdxxb.2021.25.030
NUCLEAR AND NEW ENERGY TECHNOLOGY |
In-situ multi-scale damage detection of AGR full core graphite components
ZENG Tianchen, SUN Yuewen, ZHAO Zhongwei, CONG Peng
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
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Abstract  The advanced gas-cooled reactor (AGR) was developed in the UK and is now approaching the end of its design life.Extensions of the design life mainly depend on the structural integrity of the graphite components used for core support and moderation.This study used the simultaneous algebraic reconstruction technique (SART) to simulate the linear computed tomography (CT) imaging detection scheme.The model was used to explore the influence of the background radiation in the reactor on the linear CT imaging detection and to simulated the detection and reconstruction of internal cracks and quality loss defects in the graphite components based on the known internal environment and geometric parameters of the graphite components.The predictions show that the scheme can provide important reference data for extending the life of the AGR.
Keywords advanced gas-cooled reactor (AGR)      graphite components      linear computed tomography     
Issue Date: 03 September 2022
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ZENG Tianchen
SUN Yuewen
ZHAO Zhongwei
CONG Peng
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ZENG Tianchen,SUN Yuewen,ZHAO Zhongwei, et al. In-situ multi-scale damage detection of AGR full core graphite components[J]. Journal of Tsinghua University(Science and Technology), 2022, 62(10): 1675-1680.
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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2021.25.030     OR     http://jst.tsinghuajournals.com/EN/Y2022/V62/I10/1675
  
  
  
  
  
  
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[1] LIU Renjie, SUN Yuewen, LIU Ximing, MIAO Jichen, ZHOU Liye, CONG Peng. Defect detection in the graphite components and carbon bricks in high temperature gas-cooled reactors using helical CT[J]. Journal of Tsinghua University(Science and Technology), 2021, 61(4): 367-376.
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