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Understanding the effects of high energy proton radiation is essential in planning for the next generation of X-ray space telescopes. We report on the results of an experiment in which an X-ray hybrid CMOS detector was incrementally irradiated with 8 MeV protons up to a total absorbed dose of approximately 3 krad(Si) (4.5 x 109 protons/cm2). The effect of the damage caused by the high energy protons is then analyzed in the context of several detector characteristics, including read noise, dark current, and energy resolution.
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Evan Bray, Abraham D. Falcone, Mitchell Wages, David N. Burrows, Carl R. Brune, Zach Meisel, "Proton radiation damage experiment on an x-ray hybrid CMOS detector (Conference Presentation)," Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 1111804 (9 September 2019); https://doi.org/10.1117/12.2528842