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首页> 外文期刊>Science and technology of nuclear installation >The Optimization of Radiation Protection in the Design of the High Temperature Reactor-Pebble-Bed Module
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The Optimization of Radiation Protection in the Design of the High Temperature Reactor-Pebble-Bed Module

机译：高温反应堆卵石床模块设计中的辐射防护优化

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摘要

The optimization of radiation protection is an important task in both the design and operation of a nuclear power plant. Although this topic has been considerably investigated for pressurized water reactors, there are very few public reports on it for pebble-bed reactors. This paper proposes a routine that jointly optimizes the system design and radiation protection of High Temperature Reactor-Pebble-Bed Module (HTR-PM) towards the As Low As Reasonably Achievable (ALARA) principle. A systematic framework is also established for the optimization of radiation protection for pebble-bed reactors. Typical calculations for the radiation protection of radioactivity-related systems are presented to quantitatively evaluate the efficiency of the optimization routine, which achieve 23.3%similar to 90.6% reduction of either dose rate or shielding or both of them. The annual collective doses of different systems are reduced through iterative optimization of the dose rates, designs, maintenance procedures, andwork durations and compared against the previous estimates. The comparison demonstrates that the annual collective dose of HTR-PMis reduced from 0.490 man-Sv/a before optimization to 0.445 man-Sv/a after optimization, which complies with the requirements of the Chinese regulatory guide and proves the effectiveness of the proposed routine and framework.
机译：辐射防护的优化是核电厂设计和运行中的重要任务。尽管对于压水堆已经对该问题进行了大量研究，但关于卵石床反应堆的公开报道却很少。本文提出了一个程序，以尽可能低的合理实现（ALARA）原则共同优化高温反应堆-卵石床模块（HTR-PM）的系统设计和辐射防护。还建立了用于优化卵石床反应器辐射防护的系统框架。提出了与放射性有关的系统的辐射防护的典型计算，以定量评估优化程序的效率，该优化程序可实现23.3％的剂量率或屏蔽或两者的90.6％的降低。通过反复优化剂量率，设计，维护程序和工作时间，减少了不同系统的年度总剂量，并将其与以前的估算值进行了比较。比较结果表明，HTR-PM的年总剂量从优化前的0.490 man-Sv / a减少到优化后的0.445 man-Sv / a，这符合中国监管指南的要求，并证明了拟议程序的有效性和框架。

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  • 来源
    《Science and technology of nuclear installation》 |2017年第2期|39846031.-3984603.15|共15页
  • 作者

    Sun Sida; Li Hong; Fang Sheng;

  • 作者单位

    Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Key Lab Adv Reactor Engn & Safety,Minist Educ, Beijing 100084, Peoples R China;

    Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Key Lab Adv Reactor Engn & Safety,Minist Educ, Beijing 100084, Peoples R China;

    Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Key Lab Adv Reactor Engn & Safety,Minist Educ, Beijing 100084, Peoples R China;

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