ISO 6980-2:2023 核能 β粒子参考辐射 第2部分：与表征辐射场基本量相关的校准基础
标准编号：ISO 6980-2:2023
中文名称：核能 β粒子参考辐射 第2部分：与表征辐射场基本量相关的校准基础
英文名称：Nuclear energy — Reference beta-particle radiation — Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field
发布日期：2023-11
标准范围
本文件规定了在ISO 6980参考β粒子辐射场中测量组织等效平板体模中吸收剂量率的方法。这些参考辐射覆盖的发射β粒子的同位素的能量范围是0.22 MeV至3.6 MeV的最大β能量，对应于0.07 MeV至1.2 MeV的平均β能量。超出该范围的辐射能量超出了本文件的范围。虽然在参考几何形状（在组织中垂直入射的深度为0.07 mm或3 mm？等效平板体模）中的测量被详细讨论，但也描述了其他测量系统的使用和其他几何形状中的测量，尽管不太详细。然而，如ICRU 56所述，用于区域监测的环境剂量当量H*(10)和用于个人监测的个人剂量当量Hp(10)是不合适的任何β辐射的数量，即使是穿透10？毫米的组织（Emax？>？2？MeV）。本文件适用于那些希望建立β粒子主要剂量测定能力的组织，并作为使用外推室作为β粒子主要标准的剂量测定性能的指南？其他领域的粒子剂量学。还提供了关于测量不确定性陈述的指导。
This document specifies methods for the measurement of the absorbed-dose rate in a tissue-equivalent slab phantom in the ISO 6980 reference beta-particle radiation fields. The energy range of the beta-particle-emitting isotopes covered by these reference radiations is 0,22 MeV to 3,6 MeV maximum beta energy corresponding to 0,07 MeV to 1,2 MeV mean beta energy. Radiation energies outside this range are beyond the scope of this document. While measurements in a reference geometry (depth of 0,07 mm or 3 mm at perpendicular incidence in a tissue？equivalent slab phantom) with an extrapolation chamber used as primary standard are dealt with in detail, the use of other measurement systems and measurements in other geometries are also described, although in less detail. However, as noted in ICRU 56, the ambient dose equivalent, H*(10), used for area monitoring, and the personal dose equivalent, Hp(10), as used for individual monitoring, of strongly penetrating radiation, are not appropriate quantities for any beta radiation, even that which penetrates 10 mm of tissue (Emax > 2 MeV).
This document is intended for those organizations wishing to establish primary dosimetry capabilities for beta particles and serves as a guide to the performance of dosimetry with an extrapolation chamber used as primary standard for beta？particle dosimetry in other fields. Guidance is also provided on the statement of measurement uncertainties.
标准预览图
