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Preliminary Source Terms Survey for a UO2 Pellet Development Laboratory
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Haitao YANG, Xiaolong LIU, Xuerong PAN, Meng REN, Xianming ZHOU, Kaidi XU, Te WANG
Uranium Mining and Metallurgy | 2023, 42(4) : 64 - 70
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Uranium Mining and Metallurgy | 2023, 42(4): 64-70
• SAFETY AND ENVIRONMENT PROTECTION •
Preliminary Source Terms Survey for a UO2 Pellet Development Laboratory
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Haitao YANG, Xiaolong LIU, Xuerong PAN, Meng REN, Xianming ZHOU, Kaidi XU, Te WANG
Affiliations
  • Nuclear Power Institute of China, CNNC, Chengdu 610041, China
Published: 2023-11-20 doi: 10.13426/j.cnki.yky.2023.05.02
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A UO2 pellet development laboratory is planning to be decommissioned, in order to know the radioactive contamination inside the laboratory, a preliminary source terms survey was carried out, including the operation history, surface pollution level, γ radiation dose level, aerosol concentration level investigation, as well as the contaminated area and pollutant items estimation. The results show that the main contamination nuclides are 234U, 235U and 238U, the radioactive contamination nuclides are single. The surface contamination level and the γ radiation dose and the aerosol concentration in the radioactivity laboratory is low. The contaminated area of the ground and wall of the experimental building is about 1 000 m2, about 300 units of equipment need to be decontaminated, and the temporary storage of radioactive solid waste is about 80 m3. Due to a wide variety of pollutants, and the pollution degree of various pollutants varies greatly, the solid waste should be classified during decommissioning treatment to prevent cross-contamination of various pollutants.

decommission  /  source terms survey  /  radioactive contamination  /  UO2 pellet
杨海涛, 刘小龙, 潘学荣, 任萌, 周显明, 徐凯迪, 王特. UO2芯块研制实验室初步源项调查. 铀矿冶, 2023 , 42 (4) : 64 -70 . DOI: 10.13426/j.cnki.yky.2023.05.02
Haitao YANG, Xiaolong LIU, Xuerong PAN, Meng REN, Xianming ZHOU, Kaidi XU, Te WANG. Preliminary Source Terms Survey for a UO2 Pellet Development Laboratory[J]. Uranium Mining and Metallurgy, 2023 , 42 (4) : 64 -70 . DOI: 10.13426/j.cnki.yky.2023.05.02
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Year 2023 volume 42 Issue 4
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doi: 10.13426/j.cnki.yky.2023.05.02
  • Receive Date：2023-05-05
  • Online Date：2026-10-23
  • Published：2023-11-20
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  • Received：2023-05-05
Affiliations
    Nuclear Power Institute of China, CNNC, Chengdu 610041, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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