ISO 28057:2019 光子和电子照射放射治疗用固体热释光检测器剂量学

标准编号：ISO 28057:2019

中文名称：光子和电子照射放射治疗用固体热释光检测器剂量学

英文名称：Clinical dosimetry — Dosimetry with solid thermoluminescence detectors for photon and electron radiations in radiotherapy

发布日期：2019-07

标准范围

本文件描述了根据探针法进行剂量测量的热释光剂量学（TLD）的程序、应用和系统规则。它特别适用于固体“TL探测器”，即由晶体或多晶体形式的LiF:Mg、Ti或LiF:Mg、Cu、P制成的棒、芯片和微立方体。它不适用于LiF粉末，因为它们的使用需要特殊程序。探针方法包括单个TL探测器或“TL探针”的布置，尤其是在水体模或组织等效体模中，即在薄壁聚甲基丙烯酸甲酯（PMMA）外壳中布置的一组TL探测器。这些规则的目的是保证临床剂量学中应用于患者或模型时不可或缺的可靠性和准确性。本文件适用于光子辐射为20千电子伏至50兆电子伏、电子辐射为4兆电子伏至25兆电子伏的远程治疗中的剂量学，以及光子近距离治疗中的剂量学-释放放射性核素。这些应用是对电离室使用的补充。

This document describes rules for the procedures, applications, and systems of thermoluminescence dosimetry (TLD) for dose measurements according to the probe method. It is particularly applicable to solid "TL detectors", i.e. rods, chips, and microcubes, made from LiF:Mg,Ti or LiF:Mg,Cu,P in crystalline or polycrystalline form. It is not applicable to LiF powders because their use requires special procedures. The probe method encompasses the arrangement, particularly in a water phantom or in a tissue-equivalent phantom, of single TL detectors or of "TL probes", i.e. sets of TL detectors arranged in thin-walled polymethyl methacrylate (PMMA) casings.The purpose of these rules is to guarantee the reliability and the accuracy indispensable in clinical dosimetry when applied on or in the patient or phantom. This document applies to dosimetry in teletherapy with both photon radiation from 20 keV to 50 MeV and electron radiation from 4 MeV to 25 MeV, as well as in brachytherapy with photon-emitting radionuclides. These applications are complementary to the use of ionization chambers.

标准预览图