Metzger, StefanStefanMetzgerHenschel, HenningHenningHenschelKöhn, OtmarOtmarKöhnLennartz, WilhelmWilhelmLennartz2022-03-092022-03-092001https://publica.fraunhofer.de/handle/publica/33948610.1109/RADECS.2001.1159258We used commercial off-the-shelf (COTS) silicon carbide (SiC) ultraviolet photodiodes for measuring gamma dose rates at high temperature. We tested them with Co-60 gamma dose rates between 0.03 mGy(Air)/s and 3 Gy(Air)/s. The diodes show excellent sensitivity, high signal-to-noise ratio (SNR), and good linearity. They were operated at temperatures up to 200 degrees C with negligible changes of the dark and the radiation-induced current. Gamma irradiation up to a total dose of 1080 kGy(Air), 32-MeV proton irradiations up to a fluence of 8.5 x 10/sup 12/ cm/sup -2/, and 14-MeV neutron irradiations up to 4.1 x 10/sup 12/ cm/sup -2/ demonstrate their radiation hardness. These results and the ability to measure the proton as well as the neutron dose rate after a calibration with Co-60 gammas show that COTS SiC diodes can be used as radiation detectors in harsh environments.encommercial off-the-shelf SiC ultraviolet photodiodesgamma dose ratessignal-to-noise ratioradiation-induced currentdark currentproton irradiationneutron irradiationradiation hardnessneutron dose rateneutron dose-rate metergamma dose-rate meterproton dose-rate meterSiC620conference paper