Pretreatment device for boronizing internal chamber of fusion device and application of pretreatment device

Abstract

The invention relates to a boronizing technology of a fusion device, and particularly discloses a pretreatment device for boronizing an internal chamber of the fusion device and application of the pretreatment device. The pre-ionization chamber is arranged outside the fusion device to pre-ionize the boron powder, so that the influence on the stability of conditions such as the vacuum degree in the vacuum chamber of the fusion device is avoided, meanwhile, the introduction of pollutants is completely eradicated, and an existing boron film in the vacuum chamber of the fusion device can be reinforced at any time. After the pre-ionized boron ions enter the vacuum chamber of the fusion device, the inner wall of the vacuum chamber can be boronized while fusion reaction discharging is carried out, an additional boronizing step is not needed, the operation steps are simplified, and the requirement that the fusion device runs very long pulses (namely, the quasi-steady state) or runs in the steady state for discharging in the future can be met.

Description

technical field [0001] The invention relates to the boronation technology of fusion devices, in particular to a pretreatment device for boronation of internal chambers of fusion devices. Background technique [0002] The suppression of plasma impurity ions in the fusion device chamber is one of the major problems that must be solved to achieve controlled thermonuclear fusion. In the physical experiment of the tokamak nuclear fusion device, the high-temperature plasma collides with the inner wall of the device chamber, so that the chamber wall releases various impurities into the plasma in the device chamber, and the impurities will lose the energy of the plasma, thus causing the plasma Huge loss of body energy. Growing a boron film layer on the inner wall of the nuclear fusion vacuum chamber can effectively inhibit the escape of metal impurities, oxygen and carbon impurities in the inner wall, and effectively prevent the inner wall material from being collided as impurities...

AI Technical Summary

Problems solved by technology

[0004] However, when performing boronization, the plasma discharge of the fusion reaction needs to be suspended, and the boron source needs to be opened to destroy the stable vacuum environment inside the fusion device before injecting it into the fusion device.

In this way, it cannot meet the needs of future fusion devices that will run a very long pulse (that is, quasi-steady state) or run in a steady state discharge

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