ELECTRONIC PLASMA DENSITY CONTROL SYSTEM AT THE TOKAMAK TYPE PLANTS Russian patent published in 2018 - IPC G21B1/00 

FIELD: physics, nuclear physics.

SUBSTANCE: invention relates to the means for conducting research in the field of controlled thermonuclear fusion at the tokamak type plants. Electronic density control system consists of the microwave interferometer, with the reference channel and the main channel passing through the tokamak chamber, at one end of which the backward-wave tube is installed, which is connected by the modulation signal channel to the modulation generator, and at the other end – the detector unit, which is connected to the reference channel of the microwave interferometer and through the amplifier unit and the module for determining the difference between the calculated and given phase values it is connected to the controlled voltage source, the output of which is connected to the piezo valve of the gas puffing. In this case, the module for determining the difference between the calculated and given phase values is connected to the operator's AMP, the module for determining the difference of the calculated and given phase values is made in the form of the hardware-software complex that consists of the modulation generator, which is connected by the wave modulation channel to the backward-wave tube, the synchronization module, which is connected along the channel input of the gas puffing synchronization channel and of the interferometer start-up signal channel to the operator's APM, the signal codes, the input of which is connected to the amplification and filtering unit, and the output is connected to the first input.

EFFECT: ensuring the exact correspondence of the phase and opening of the gas puffing valve at the high rate of increase in the plasma density.

1 cl, 2 dwg