Experimental Study of the Possibility to Generate Radiation at a Frequency of Up to 400 GHz in an Orotron with a Double-Row Periodic Structure

Abstract

We study experimentally the possibility to shift the minimal wavelength of the radiation generated by an orotron with a double-row periodic structure, which is manufactured by using the sparkdischarge technology, into the submillimeter wavelength range. It is shown that one can realize this possibility at an accelerating voltage of less than 20 kV and the minimal height of the transit channel being equal to 0.1 mm only by increasing the operating current and using sophisticated focusing mirrors simultaneously. The results of studying the tuning of the generation frequency of an orotron with a structure period of 0.182 mm in the 140–402 GHz are presented. The possibility to generate at a wavelength of 0.7 mm is discussed.