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21 September 2015 Proton-Electron Discrimination Detector (PEDD) for space weather monitoring
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Abstract
Electronics used for space applications (e.g. communication satellites) are susceptible to space weather, primarily consisting of electrons and protons. As more critical equipment is used in space, a comprehensive monitoring network is needed to mitigate risks associated with radiation damage. Compact detectors suited for this requirement have been too complicated or do not provide sufficient information. As the damage from electrons (e.g. total ionizing dose effects) is significantly different compared to protons (e.g. displacement damage effects), monitors that can provide unique measurements of the dose and/or spectral information for electrons and protons separately are necessary for mission assessment to determine strategies for maintaining function. Previously, we demonstrated that the Proton-Electron Discrimination Detector (PEDD) is space-compatible and can discriminate fast electrons from protons using a diphenylanthrecene (DPA) scintillator coupled to a CMOS silicon photomultiplier (SiPM). The SiPM has a temperature dependence, and a circuit has been developed to provide a stable response as a function of temperature. The PEDD detector is scheduled to participate on the RHEME experiment to be flown on the ISS, scheduled for launch in 2016.
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Chad M. Whitney, Erik B. Johnson, Xiao Jie Chen, Christopher Stapels, Sam Vogel, and James Christian "Proton-Electron Discrimination Detector (PEDD) for space weather monitoring", Proc. SPIE 9604, Solar Physics and Space Weather Instrumentation VI, 960405 (21 September 2015); https://doi.org/10.1117/12.2188384
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