Abstract In radiation therapy, the dose distribution is determined using a homogeneous phantom. However, given that the human body includes not only soft tissue but also air and bone, it is desirable to be able to verify the dose distribution in a human body. In the context of developing an anthropomorphic phantom dosimeter for photon therapy, there is therefore a need to improve the tissue equivalencies of Al2O3:Cr thermoluminescence dosimeters (TLDs) with a relatively high effective atomic number (11.14). For this purpose, the use of Al2O3:Cr TLDs with bulk-density control was examined by Monte Carlo simulations. Furthermore, the TL properties of several manufactured bulk-density controlled TLDs were investigated. In photon therapy, it was found that the equivalence of the bulk-density controlled TLDs relative to human body was effectively matched, while maintaining the TL characteristics of the base Al2O3:Cr TLDs.

中文翻译：

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基于 Al2O3:Cr 陶瓷的体积密度控制热释光剂量计作为用于光子治疗的拟人体模剂量计

摘要 在放射治疗中，剂量分布是使用均匀体模确定的。然而，鉴于人体不仅包括软组织，还包括空气和骨骼，因此希望能够验证人体中的剂量分布。因此，在开发用于光子治疗的拟人体模剂量计的背景下，需要提高具有相对较高有效原子序数 (11.14) 的 Al2O3:Cr 热释光剂量计 (TLD) 的组织等效性。为此，蒙特卡罗模拟检查了使用具有体积密度控制的 Al2O3:Cr TLD。此外，研究了几种制造的体积密度受控 TLD 的 TL 特性。在光子治疗中，