免于辐射防护监管浅议  

Discussion on Material Not Requiring Radiological Regulation

作　　者：张友芳[1] 

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《有色冶金节能》2015年第5期46-48,共3页Energy Saving of Nonferrous Metallurgy

摘　　要：通过对免于辐射防护监管含义的理解和免于辐射防护监管范围的分析、推算，提出废渣的总活度浓度低于7．4×10^4Bq／kg所对应的天然放射性核素Th-232的活度浓度为1×10^4Bq／kg，U-238、Ra～226的活度浓度为2×10^4Bq／kg作为不建放射性渣库贮存的限定性清洁解控水平，即低于清洁解控水平的伴生废物，可以免除建库贮存的核审管、免于放射性渣库的辐射防护监管。By understanding the meaning of material not requiring radiological regulation and analyzing and predicting the scope of material not requiring radiological regulation, this paper proposes the waste slag total activity concentrations lower than 7.4 × 10^4 Bq/kg corresponding natural radionuclides Th-232 activity concentration 1 × 10^4 Bq/kg, U-238, Ra-226 activity concentration 2× 10^4 Bq/kg are the not build-limiting clearance level for radioactive slag storage, It is lower than the clearance levels of associat- ed waste, then it exempted from nuclear audit of building storage to store, from radiation protection su- pervision of radioactive slag storage.

关 键 词：辐射防护 清洁解控 免管废物 附加有效剂量 

分 类 号：TL7[核科学技术—辐射防护及环境保护]