Radiation hardness of subterahertz radiation source based on heterodyne on Gunn diode generator and superlattice multiplier

The radiation resistance to gamma irradiation of various dose levels (0.5 kGy, 2 kGy, 10 kGy) of a subterahertz radiation source from a heterodyne on a Gunn diode and a GaAs/AlAs semiconductor superlattice multiplier was estimated. A measuring chamber for studying the radiation resistance of Gunn diodes has been developed and manufactured. The dependence of the output power on the frequency of a sub-terahertz radiation source before and after irradiation was evaluated analytically.