First mirror sample irradiation support and irradiation method

Abstract

The invention is directed to the research fields of interaction between material and hot plasma and hot plasma diagnosis and concretely relates to a first mirror sample irradiation support and irradiation method in a high vacuum and strong magnetic field environment. The goal is to bring conveniences for controlling the temperature and replacing samples of different materials without destroying the condition of apparatus vacuum. The irradiation support comprises two sample racks which are put in parallel. A ceramic heating plate is provided inside a sample rack. A temperature sensor A and a sample A are provided above the ceramic heating plate. A sample pressure plate A is pressed upon the sample A. A sample B and a temperature sensor B are provided inside the other sample rack. A sample pressure plate B is pressed upon the sample B. The power lines and signal lines of the ceramic heating plate, the temperature sensor A, the temperature sensor B are connected with an external power supply and a display. The irradiation support brings conveniences for the experimental comparison of different sample conditions under the situation of a same plasma discharge and the influence from a 220 AC power supply on the plasma discharge is avoided.

Description

technical field [0001] The invention belongs to the research field of interaction between materials and high-temperature plasma and high-temperature plasma diagnosis, and specifically relates to a first mirror sample irradiation support and irradiation method in a high vacuum and strong magnetic field environment. Background technique [0002] In controlled fusion experiments, many physical and experimental parameters need to be measured using optical diagnostic methods such as interferometers. In order to obtain the detection signal, the plasma signal must be guided to the measurement system by means of some optical mirrors. These mirrors are called first mirrors. The high-energy plasma will cause the mirror to suffer sputtering corrosion and impurity deposition, and the reflectivity of the first mirror will drop drastically, eventually causing the measurement system to fail. Therefore, solving the problem of optical performance degradation of the first mirror has become ...

AI Technical Summary

Problems solved by technology

The process experienced during the period is too complicated, which brings difficulties to the analysis and research

In addition, because the inner wall of the vacuum chamber of the fusion device is thin, in order to avoid arcing during discharge, it is not allowed to connect to a 220V AC power supply, and it becomes a problem to use ordinary resistance wires to heat the sample material.

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