Abstract With the current developments in medical physics and radiotherapy, there is a renewed interest in novel microdosimetry detectors. The Timepix detector, developed at CERN as an extension of the Medipix2 detector, represents such a microdosimeter. It can be used for experiments with photons, electrons and heavy particles and in a wide range of applications in spectroscopy, space physics, nuclear physics, radiotherapy physics, medical imaging and radiation protection. This article reviews some of the published works utilizing Timepix as a radiation detector, as a spectroscope or as a camera for photons and charged particles. We describe specific applications of Timepix that may be of interest to physicists and the industry. We show that more investigations are still required to gain the full benefit of Timepix applications in the fields of radiation therapy and imaging to utilize the potential of this detector fully. More specifically, the application of Timepix to targeted radiotherapies remains limited despite the main advantage of Timepix, which is energy deposition tracking at a micron level.

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Timepix 探测器在光谱学、辐射和医学物理学中的当前应用概述

摘要 随着医学物理学和放射治疗的当前发展，人们对新型微剂量检测器重新产生了兴趣。在 CERN 开发的 Timepix 检测器作为 Medipix2 检测器的扩展，代表了这样一种微剂量计。它可用于光子、电子和重粒子的实验，并广泛应用于光谱学、空间物理学、核物理学、放射治疗物理学、医学成像和辐射防护。本文回顾了一些使用 Timepix 作为辐射探测器、光谱仪或光子和带电粒子相机的已发表作品。我们描述了物理学家和行业可能感兴趣的 Timepix 的特定应用。我们表明，仍需要进行更多的研究才能充分利用 Timepix 在放射治疗和成像领域的应用，以充分利用该探测器的潜力。更具体地说，尽管 Timepix 的主要优势是微米级的能量沉积跟踪，但 Timepix 在靶向放射治疗中的应用仍然有限。