ISO 6980-2:2004 核能.参考β粒子辐射.第2部分：辐射场的基本数量特性的相关校正基础
标准编号：ISO 6980-2:2004
中文名称：核能.参考β粒子辐射.第2部分：辐射场的基本数量特性的相关校正基础
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：2004-10
标准范围
ISO 6980-2:20 04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定向吸收剂量率的方法。这些参考辐射覆盖的发射β粒子的同位素的能量范围为0.066至3.54 MeV（最大能量）。超出该范围的辐射能量超出了本标准的范围。虽然详细讨论了具有参考类外推腔室的参考几何形状(在组织等效板体模中垂直入射的深度为0.07 mm)中的测量，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。用于强穿透辐射的区域监测的环境剂量当量H*（10）对于任何β辐射都不是合适的量，即使对于穿透IOmm厚的ICRU组织层（即。e.Emax大于2 MeV)。如果在0.07 mm处提供足够的保护，则很少会担心其他深度，例如3mm。ISO 6980-2:20 04面向希望建立β粒子参考级剂量测定能力的组织，并作为在其他领域使用β粒子剂量测定参考级外推室进行剂量测定的指南。还提供了关于测量不确定性陈述的指导。
ISO 6980-2:2004 specifies methods for the measurement of the directional 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 0,066 to 3,54 MeV (maximum energy). Radiation energies outside this range are beyond the scope of this standard. While measurements in a reference geometry (depth of 0,07 mm at perpendicular incidence in a tissue-equivalent slab phantom) with a reference class extrapolation chamber are dealt with in detail, the use of other measurement systems and measurements in other geometries are also described, although in less detail. The ambient dose equivalent, H*(10) as used for area monitoring of strongly penetrating radiation is not an appropriate quantity for any beta radiation, even for that penetrating a 10 mm thick layer of ICRU tissue (i.e. Emax greater than 2 MeV). If adequate protection is provided at 0,07 mm, only rarely will one be concerned with other depths, for example 3 mm.ISO 6980-2:2004 is geared towards organizations wishing to establish reference-class dosimetry capabilities for beta particles, and serves as a guide to the performance of dosimetry with the reference class extrapolation chamber for beta-particle dosimetry in other fields. Guidance is also provided on the statement of measurement uncertainties.
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