In this study, a personal gamma (γ) spectrometer was developed for use in applications in various fields, such as homeland security and environmental radiation monitoring systems. The prototype consisted of a 3 × 3 × 20 mm 3 Ce-doped Gd–Al–Ga–garnet (Ce:GAGG) crystal that was coupled to a Si photomultiplier (SiPM) to measure γ radiation. The γ spectrometer could be accessed remotely via a mobile device. At room temperature, the implemented Ce:GAGG-SiPM spectrometer achieved energy resolutions of 13.5%, 6.9%, 5.8%, and 2.3% for 133 Ba at 0.356 MeV, 22 Na at 0.511 MeV, 137 Cs at 0.662 MeV, and 60 Co at 1.33 MeV, respectively. It consumed only about 2.7 W of power, had a mass of just 340 g (including the battery), and measured only 5.0 × 7.0 cm 2 .
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机译：在这项研究中，开发了一种个人伽玛（γ）光谱仪，用于各种领域的应用，例如国土安全和环境辐射监测系统。该原型包括一个3×3×20 mm 3的掺Ce的Gd-Al-Ga-石榴石（Ce：GAGG）晶体，该晶体与Si光电倍增管（SiPM）耦合以测量γ辐射。 γ光谱仪可以通过移动设备进行远程访问。在室温下，实施的Ce：GAGG-SiPM光谱仪在0.356 MeV时的133 Ba，0.511 MeV时的22 Na，0.662 MeV时的137 Cs和60 Co的能量分辨率分别达到13.5％，6.9％，5.8％和2.3％分别为1.33 MeV它仅消耗约2.7 W的功率，重量仅为340 g（包括电池），尺寸仅为5.0×7.0 cm 2。
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