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Development and Performance Characteristics of Personal Gamma Spectrometer for Radiation Monitoring Applications

Department of Physics, University of Myongji, Yongin 449-728, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Sensors 2016, 16(6), 919; https://doi.org/10.3390/s16060919
Received: 9 April 2016 / Revised: 25 May 2016 / Accepted: 17 June 2016 / Published: 21 June 2016
(This article belongs to the Section Physical Sensors)
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 mm3 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 133Ba at 0.356 MeV, 22Na at 0.511 MeV, 137Cs at 0.662 MeV, and 60Co 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 cm2. View Full-Text
Keywords: Ce-doped Gd–Al–Ga–garnet (Ce:GAGG); Si photomultiplier (SiPM); spectrometer; energy resolution; homeland security (HLS); environmental radiation monitoring system (ERMS) Ce-doped Gd–Al–Ga–garnet (Ce:GAGG); Si photomultiplier (SiPM); spectrometer; energy resolution; homeland security (HLS); environmental radiation monitoring system (ERMS)
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Park, H.M.; Joo, K.S. Development and Performance Characteristics of Personal Gamma Spectrometer for Radiation Monitoring Applications. Sensors 2016, 16, 919.

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