电离辐射剂量监测仪表国际标准的进展

Progress of International Standards for Ionizing Radiation Dose Monitoring Instruments

随着辐射防护领域的不断进步,电离辐射剂量仪表相关国际标准也在持续更新迭代,为总结该领域IEC、ISO标准的发展现状,为剂量仪表的生产、选用提供参考,通过调研、比较相关标准的不同版本,梳理了光子、β和中子剂量监测仪表相关IEC、ISO标准的发展概况和最新版本所做的修改与更新,并比较了现行不同标准对于仪表各方面性能要求、规范的差异。可以看出,各监测分类下的国际标准在发展过程中趋于统一,不再按探测器种类等进行划分,且整体应用范围更为广泛,但脉冲辐射剂量仪表相关标准仍有待发展;适用于同一监测分类的不同标准对于仪表的性能要求基本一致,但由于IEC、ISO标准的制定目的、应用场景不同,两者在性能要求、规范上的侧重点会存在差异。

With the continuous progress in the radiation protection,the international standards related to ionizing radiation dosimeters are also continuously updated and iterated.In order to summarize the development status of IEC and ISO standards in the field and provide reference for the production and selection of dosimeters,by researching and comparing the content of different versions of relevant standards,summarizing the development overview of relevant IEC and ISO standards and the modifications and updates made in the latest version for the dose monitoring instruments of photon,βand neutron,as well as the differences in performance requirements and specifications for various aspects of instruments between the different current standards were compared.It was found that the international standards under each monitoring category tended to be unified in the development process,no longer divided by detector types,etc.Moreover,the overall application scope of these standards was broader,but the relevant standards of dose measurement instruments for pulsed radiation still need to be developed.And different standards applicable to the same monitoring classification had basically the same performance requirements for instruments,however,due to the different purposes and application scenarios of IEC and ISO standards,there were differences in the focus of performance requirements and specifications between the two.