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作废 EN ISO 14146:2021
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Radiological protection - Criteria and performance limits for the periodic evaluation of dosimetry services (ISO 14146:2018) 辐射防护.剂量测定服务定期评估的标准和性能限值(ISO 14146-2018)
发布日期: 2021-02-10
实施日期: 2021-02-10
剂量学服务供应商的质量取决于经批准(型式试验)剂量学系统的特性[1]和工作人员的培训和经验,以及校准程序和质量保证计划。 本文件规定了定期验证提供个人和/或区域剂量计的剂量学服务性能所用的标准和试验程序。 区域剂量计可以是工作场所剂量计或环境剂量计。 性能评估可作为剂量学系统批准程序的一部分进行,或作为一项独立检查,以验证剂量学服务在代表性暴露条件下满足规定的国家或国际型式试验性能要求,这些暴露条件是预期的或模拟工作场所现场的正在监测的放射性活动。 本文件适用于个人和区域剂量计,用于评估平均能量(注量加权)在8千电子伏和10兆电子伏之间的外部光子辐射、平均能量(注量加权)在60千电子伏和1,2兆电子伏之间的β辐射和平均能量(注量加权)在25千电子伏之间的中子辐射,3MeV(即麦克斯韦能量分布为kT=25,3MeV的热中子)和200MeV。 它涵盖了需要实验室处理的所有类型的个人和区域剂量计(例如热释光、光激发光、放射光释光、径迹探测器或照相胶片剂量计),并涉及连续测量或定期在固定时间间隔(例如几周、一个月)重复测量。 活性剂量计(用于剂量测量)也可根据本文件进行处理。然后,应将其视为被动的(即剂量学服务读取其指示值并将其报告给评估机构)。 [1] 如果本文件适用于未提供认证(型式或型式试验)的剂量学系统,则在下文中,认证或型式试验应理解为制造商提供的技术数据表或监管机构要求的数据表。
The quality of a supplier of a dosimetry service depends on both the characteristics of the approved (type‑tested) dosimetry system[1] and the training and experience of the staff, together with the calibration procedures and quality assurance programmes. This document specifies the criteria and the test procedures to be used for the periodic verification of the performance of dosimetry services supplying personal and/or area dosemeters. An area dosemeter can be a workplace dosemeter or an environmental dosemeter. The performance evaluation can be carried out as a part of the approval procedure for a dosimetry system or as an independent check to verify that a dosimetry service fulfils specified national or international type test performance requirements under representative exposure conditions that are expected or mimic workplace fields from the radiological activities being monitored. This document applies to personal and area dosemeters for the assessment of external photon radiation with a (fluence weighted) mean energy between 8 keV and 10 MeV, beta radiation with a (fluence weighted) mean energy between 60 keV and 1,2 MeV, and neutron radiation with a (fluence weighted) mean energy between 25,3 meV (i.e. thermal neutrons with a Maxwellian energy distribution with kT = 25,3 meV) and 200 MeV. It covers all types of personal and area dosemeters needing laboratory processing (e.g. thermoluminescent, optically stimulated luminescence, radiophotoluminescent, track detectors or photographic-film dosemeters) and involving continuous measurements or measurements repeated regularly at fixed time intervals (e.g. several weeks, one month). Active dosemeters (for dose measurement) may also be treated according to this document. Then, they should be treated as if they were passive (i.e. the dosimetry service reads their indicated values and reports them to the evaluation organization). [1] If this document is applied to a dosimetry system for which no approval (pattern or type test) has been provided, then in the following text approval or type test should be read as the technical data sheet provided by the manufacturer or as the data sheet required by the regulatory authority.
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归口单位: CEN/TC 430-
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