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The Quasi-Optical (QO) HE11-mode exciter has been considered for mode coupling into the circular corrugated waveguides. It contained a feed antenna and QO mirror system. A fields radiated from the feed antenna were measured, and the mode contents was analyzed with irradiant waveguide modes.
The effective characteristics of high frequency and strong electric field processing were observed. One of the interesting effects is so called non-thermal effect or microwave effect. In order to widely study the non-thermal effect of ceramics sintering and application of material heating, we developed a material processing system by using a 300 GHz gyrotron. This system are consisted of a 300 GHz,...
The effective characteristics of high frequency and strong electric field processing were observed. One of the interesting effects is so called non-thermal effect or microwave effect. In order to widely study the non-thermal effect of ceramics sintering, we developed a material processing system by using a 300 GHz gyrotron. Successful submillimeter wave sintering of partially stabilized zirconia ceramics...
Summary form only given. A large orbit gyrotron (LOG) has been developed for generation of high-power far-infrared radiation. It uses pulsed relativistic electron beam with maximum electron energy of 400 kV. The studies were carried out through both experimental and simulation approaches. The objective is to demonstrate high-power radiation in terahertz range. The experiments were carried out using...
High frequency gyrotrons are characterized by their capacity to generate powerful radiation in millimeter to submillimeter wavelength range. However, a gyrotron produces a spreading radiation with a spatial structure of the TEmn circular waveguide mode. Functional quasi-optical systems to transmit and to tune the waist size of Gaussian beam converted from gyrotron output are necessary to the application...
The effect characteristic of high frequency and strong electric field processing was observed. One of interest effects is so called non-thermal effect or microwave effect. In order to widely study the non-thermal effect of ceramics sintering. We developed a material processing system by using a 300 GHz gyrotron. This system consists of a 300 GHz, 3.5 kW, CW gyrotron (gyrotron FU CW I) with a cryogen-free...
We developed the material heating system by using a 300 GHz gyrotron. This system are consisted of a 300 GHz, 3.5 kW, CW gyrotron with a cryogen free 12 T superconducting magnet (Gyrotron FU CW I), a corrugated circular waveguide and an applicator. The circular corrugated waveguide ( i.d. = 6.35 cm) with a corrugated period and depth of 254mum have been designed. The applicator has been designed for...
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