ISO 14146:2018 射线防护 评剂量测量服务定期评估的标准和性能

标准编号：ISO 14146:2018

中文名称：射线防护 评剂量测量服务定期评估的标准和性能

英文名称：Radiological protection — Criteria and performance limits for the periodic evaluation of dosimetry services

发布日期：2018-07

标准范围

剂量测定服务供应商的质量取决于批准的（类型？经过测试的）剂量测定系统[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测定服务性能的标准和测试程序。区域剂量计可以是工作场所剂量计或环境剂量计。性能评估可以作为剂量测定系统批准程序的一部分进行，也可以作为独立检查进行，以验证剂量测定服务在预期或模拟被监测放射性活动的工作场所场的代表性暴露条件下满足指定的国家或国际型式试验性能要求。本文件适用于个人和区域剂量计，用于评估（注量加权）平均能量在8 keV和10 MeV之间的外部光子辐射、（注量加权）平均能量在60 keV和1.2 MeV之间的β辐射和（注量加权）平均能量在25.3 MeV之间的中子辐射（即具有麦克斯韦能量分布的热中子，kT=25.3 MeV）和200 MeV。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（如热释光、光受激发光、放射光致发光、跟踪探测器或照相胶片剂量计），并涉及连续测量或以固定时间间隔（如几周、一个月）定期重复测量。活性剂量计(用于剂量测量)也可以根据本文件进行处理。然后，应将其视为被动的（即剂量测定服务读取其指示值并将其报告给评估组织）。[1]如果本文件适用于尚未提供批准（型式或型式试验）的剂量测定系统，则在以下文本中，批准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.

标准预览图