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Sensors 2016, 16(6), 919; doi:10.3390/s16060919

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
Received: 9 April 2016 / Revised: 25 May 2016 / Accepted: 17 June 2016 / Published: 21 June 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [2312 KB, uploaded 21 June 2016]   |  

Abstract

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)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

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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