Materials Reports  2020, Vol. 34 Issue (Z2): 572-575 |
| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Research on the Shielding Effect of Flexible Tungsten Rubber for the Glove Box Pipeline Hotspots |
| WU Zhifeng1, HAN Yi2, YANG Mingming2, LI Guodong2, WANG Zhongjie1, LIU Liang1, XIE Wenming1
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1 Liao Ning Hong Yan He Nuclear Power Co., Ltd., Dalian 116000, China
2 China Institute for Radiation Protection, Taiyuan 030006, China |
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Abstract When a glove box is used for centralized sampling of liquids and gases in a nuclear power plant, the sampling pipelines filled with radioactive liquid become radiation hotspots. Due to the complicated structure of the glove box pipeline and high internal humidity, the lead or flexible lead shield will be hardened due to oxidation, affecting the operability of the glove box pipeline. Adding micron-level metal powder to the silicone rubber matrix can form a new type of shielding material that takes into account both softness and protective effect, and will not oxidize and harden for a long time in high humidity air. This paper compares the calculated and tested values of the shielding effect of tungsten rubber in the reference radiation field to verify the reliability of the calculation method. In this paper, a shielding device suitable for hotspots in complex pipelines is designed, using tungsten rubber as the shielding material. The effect of different thickness tungsten rubber shielding devices on the dose rate in the personnel operating space is simulated and analyzed, so as to give a recommended plan.
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Published: 08 January 2021
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| About author:: Zhifeng Wu graduated from Lanzhou University with a bachelor's degree in radiochemistry. He is the Deputy Chief Engineer of Radiation Protection of the Safety and Quality Assurance Department of Liao Ning Hong Yan He Nuclear Power Co., Ltd. Yi Han graduated from Shanghai Jiaotong University with a major in Nuclear Engineering and Nuclear Technology in 2012. He works at the China Institute of Ra-diation Protection and is mainly engaged in research re-lated to shielding technology. During his work, Han Yi mainly participated in 8 important national scientific research topics, and possessed certain technical foundation and scientific research capabilities in deep penetration shielding calculation, shielding engineering construction optimization, and shielding benchmark research. During the deve-lopment of scientific research projects, he published 4 articles in core journals as the first author, published 1 international conference report, prepared 2 excellent GF reports; published 2 articles in core journals as second author, and published 16 articles as other author in total. |
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