核电厂一回路异物打捞工作辐射防护

谢卫平; 赵喜寰; 陈皞; 陈全利; 刘胜龙

doi:10.11889/j.1000-3436.2022-0076

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核电厂一回路异物打捞工作辐射防护

辐射防护 | 更新时间：2023-06-21

- 核电厂一回路异物打捞工作辐射防护
- Radiation protection for foreign body salvage work in primary of nuclear power plant
- 辐射研究与辐射工艺学报 2023年41卷第3期页码：30601
- 作者机构：
  
  1.江苏核电有限公司连云港 222000
- 作者简介：
  
  谢卫平，男，1987年3月出生，高级工程师/高级技师，2010年7月于南华大学获学士学位，主要从事辐射监测、辐射防护设计、辐射安全监督工作方向，E-mail: xieweiping2008@163.com.
- 基金信息：
- DOI：10.11889/j.1000-3436.2022-0076
  中图分类号：
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谢卫平, 赵喜寰, 陈皞, 等. 核电厂一回路异物打捞工作辐射防护[J]. 辐射研究与辐射工艺学报, 2023,41(3):030601.

XIE Weiping, ZHAO Xihuan, CHEN Hao, et al. Radiation protection for foreign body salvage work in primary of nuclear power plant[J]. Journal of Radiation Research and Radiation Processing, 2023,41(3):030601.
谢卫平, 赵喜寰, 陈皞, 等. 核电厂一回路异物打捞工作辐射防护[J]. 辐射研究与辐射工艺学报, 2023,41(3):030601. DOI： 10.11889/j.1000-3436.2022-0076.

XIE Weiping, ZHAO Xihuan, CHEN Hao, et al. Radiation protection for foreign body salvage work in primary of nuclear power plant[J]. Journal of Radiation Research and Radiation Processing, 2023,41(3):030601. DOI： 10.11889/j.1000-3436.2022-0076.

摘要

核电厂一回路的异物随着冷却剂进入到堆芯被活化，活化后的异物具有很高的放射性，而这些高放射性的异物往往容易沉积在一回路相关设备内。针对一回路异物打捞工作容易造成工作人员受到超剂量照射的问题，设计了专用转运屏蔽装置、高放废物贮存容器、转运区域隔离管控要求，可以有效降低异物转运和贮存时对周围区域辐射水平的影响，确保工作人员的辐射安全。经验证，异物活化的理论计算结果与现场实测辐射水平基本一致，理论计算结果可为异物打捞工作的辐射防护工作方案、人员防护措施制定提供理论指导。

Abstract

The foreign materials in primary of nuclear power plant are activated with the coolant into the core, and the activated foreign materials are highly radioactive, while these highly radioactive foreign materials are often easily deposited in the primary related equipment. Hence, operators are frequently overexposed to radiation during foreign body salvage work in primary systems. Special transfer shielding devices, high discharge waste storage containers, and transfer area isolation control are designed to effectively reduce the impact of foreign body transfer and storage on the radiation level of the surrounding area and to ensure the radiation safety of the staff. Theoretical calculations of foreign body activation are consistent with the measured on-site radiation levels and can be used to guide the radiation protection work plan and personnel protection measures during foreign body salvage work.

关键词

核电厂异物腐蚀活化剂量率辐射防护打捞

Keywords

Nuclear power plantsForeign objectsCorrosion activationDose rateRadiation protectionSalvage

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