摘要
Abstract
DSA(Digital subtraction angiography)is the most common medical facility as a Class Ⅱ radiation device of environmental impact evaluation report form for nuclear technology application facilities.At present,the composing,reviewing and checking of the EIA report on the nuclear technology are in accordance with the format and requirements of the"Radiation environmental protection management guidelines Content and format of environmental impacts evaluation document for nuclear technology application facilities"(HJ 10.1-2016),and theoretical calculation is required to check whether the shielding protection of the DSA room meets the radiation limits specified in the"Requirements for radiological protection in diagnostic radiology"(GBZ130-2020).In this paper,based on the structural characteristics of DSA equipment and access conditions as medical devices,the shielding calculation and parameter selection of DSA equipment room meeting the minimum shielding lead equivalent of GBZ130-2020,the most unfavorable room size and the most unfavorable working conditions are given,and the minimum lead equivalent requirements of GBZ130-2020 for DSA room are verified through the calculation results.It is suggested that the nuclear technology environmental impact assessment method of DSA room can be evaluated by comparing with GBZ130-2020 standard,rather than adhering to the theoretical calculation required by HJ10.1-2016,which is conducive to reducing the work burden of EIA composing personnel,reviewers and approving personnel.关键词
DSA(数字减影血管造影机)/核技术利用项目环境影响评价/《辐射环境保护管理导则 核技术利用建设项目 环境影响评价文件的内容和格式》(HJ 10.1-2016)/《放射诊断放射防护要求》(GBZ 130-2020)/标准对比法分类
资源环境
