Parajuli Raj Kumar, Sakai Makoto, Parajuli Ramila, Tashiro Mutsumi
Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.
Gunma University Heavy Ion Medical Center, Gunma University, 3-39-22 Showa-machi, Maebashi 371-8511, Japan.
Sensors (Basel). 2022 Sep 28;22(19):7374. doi: 10.3390/s22197374.
The history of Compton cameras began with the detection of radiation sources originally for applications in astronomy. A Compton camera is a promising γ-ray detector that operates in the wide energy range of a few tens of keV to MeV. The γ-ray detection method of a Compton camera is based on Compton scattering kinematics, which is used to determine the direction and energy of the γ-rays without using a mechanical collimator. Although the Compton camera was originally designed for astrophysical applications, it was later applied in medical imaging as well. Moreover, its application in environmental radiation measurements is also under study. Although a few review papers regarding Compton cameras have been published, they either focus very specifically on the detectors used in such cameras or the particular applications of Compton cameras. Thus, the aim of this paper is to review the features and types of Compton cameras and introduce their applications, associated imaging algorithms, improvement scopes, and their future aspects.
康普顿相机的历史始于最初用于天文学应用的辐射源探测。康普顿相机是一种很有前景的γ射线探测器，可在几十keV到MeV的宽能量范围内工作。康普顿相机的γ射线探测方法基于康普顿散射运动学，该方法用于在不使用机械准直器的情况下确定γ射线的方向和能量。尽管康普顿相机最初是为天体物理应用而设计的，但后来也应用于医学成像。此外，其在环境辐射测量中的应用也在研究中。虽然已经发表了几篇关于康普顿相机的综述论文，但它们要么非常具体地关注此类相机中使用的探测器，要么关注康普顿相机的特定应用。因此，本文的目的是回顾康普顿相机的特点和类型，并介绍它们的应用、相关成像算法、改进范围及其未来发展方向。
