The effect of irradiation with protons, electrons, neutrons, x-ray radiation and gamma-ray
photons as well as with different ions on properties of starting SiC material and devices based on it
was studied. The rectifying properties of the diode structures, which degraded as a result of irradiation
with high energy particles, were recovered at higher operation temperatures. The transistor structure
SiC-based detectors were realized with the signal amplification by a factor of tens under irradiation.
The energy resolution of 0.34 %, commensurable with Si-detectors, has been achieved for SiC
detectors and is correct for all classes of short range ions. The maximum signal amplitude
corresponds, in SiC, to a mean electron-hole pair creation energy of 7.7 eV.