Dual-frequency 19 / 38 GHz MW Gyrotron Design for Spherical Tokamak

A. Fedotov, I. Bandurkin, V. Manuilov, E. Semenov, I. Zotova, M. Glyavin
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Abstract

In spherical tokamaks, the magnetic field is strongly non-uniform inside the plasma, so the electron-cyclotron resonance heating (ECRH) condition is fulfilled only in small volume for fixed microwave frequency. Therefore, for spherical tokamak facilities the plasma heating and confinement regime depends on the position of ECRH area. For this purpose, the gyrotron capable for CW operation with output power of 1 MW at two different frequencies of 19 GHz and 38 GHz is designed.
球形托卡马克双频19 / 38 GHz兆瓦回旋加速器设计
在球形托卡马克中,等离子体内部的磁场不均匀性很强,因此电子回旋共振加热(ECRH)条件只能在固定微波频率的小体积内实现。因此,对于球形托卡马克装置,等离子体的加热和约束状态取决于ECRH区域的位置。为此,设计了19 GHz和38 GHz两种不同频率下输出功率为1 MW的连续波回旋管。
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