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Wireless, Low-Cost, FPGA-based Miniature Gamma Ray Spectrometer

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https://ir.library.oregonstate.edu/concern/articles/dz010r27f

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  • A compact, low-cost, wireless gamma-ray spectrometer is a tool sought by a number of different organizations in the field of radiation detection. Such a device has applications in emergency response, battlefield assessment, and personal dosimetry. A prototype device fitting this description has been constructed in the Advanced Radiation Instrumentation Laboratory at Oregon State University. The prototype uses a CsI(Tl) scintillator coupled to a solid-state photomultiplier and a 40 MHz, 12-bit, FPGA-based digital pulse processor to measure gamma radiation, and is able to be accessed wirelessly by mobile phone. The prototype device consumes roughly 420 mW, weighs about 28 g (not including battery), and measures 2.54 x 3.81 cm². The prototype device is able to achieve 5.9% FWHM energy resolution at 662 keV.
  • The publisher has made available a Corrigendum to the published version of this article along with the following statement: All instances of the term “MiniSpec” used in this article should instead read “OSU Compact Spectrometer”. The term “MiniSpec” is a registered trademark of the Bruker Corporation. The authors would like to apologize for any inconvenience caused. [Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 797, 11 October 2015, Pages 333.]
  • Keywords: Low-Cost, FPGA, Gamma Ray Spectroscopy, Scintillator, Digital Pulse Processor, Silicon Photomultiplier, Compact
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  • Becker, E. M., & Farsoni, A. T. (2014). Wireless, low-cost, FPGA-based miniature gamma ray spectrometer. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 761, 99-104. doi:10.1016/j.nima.2014.05.096
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  • 761
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