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目的探讨γ辐照装置安全退役。方法根据国家相关法律、法规与条例,部门规章、相关标准与规范,进行退役管理、环境监测。结果废旧放射源退回生产单位,工作场所γ辐射水平、β表面污染水平退役监测结果,贮源井水、土壤样品等检测分析结果,井底、井壁表面β放射性物质污染测量结果,满足清洁解控的要求,退役后能够保证公众剂量约束值小于0.1 mSv/a,可以重新开发利用。结论辐照装置退役场址可以无限制开放使用。
Objective To investigate the safe retiring of γ irradiation device. Methods According to relevant national laws, regulations and rules, departmental rules and regulations, relevant standards and norms, retirement management and environmental monitoring were conducted. Results The returned radioactive sources of waste radioactive sources, gamma radiation in the workplace, the monitoring results of the decommissioning level of β surface contamination, the detection and analysis results of stored-source well water and soil samples, the measurement result of β radioactive material contamination on the bottom surface and well wall surface, Control requirements, after retiring to ensure that the public dose constraint value is less than 0.1 mSv / a, you can re-exploit. Conclusion The retiring site of the irradiation device can be used without restriction.