Limiter probe system suitable for magnetic confinement device

Abstract

The invention discloses a limiter probe system suitable for a magnetic confinement device. The limiter probe system comprises a heat sink substrate, a graphite tile and a probe assembly. The heat sink substrate is formed by processing chromium zirconium copper, and two water cooling pipelines are arranged in the heat sink substrate. The graphite tile is made of high-density graphite and has high thermal conductivity. The probe assembly is composed of a graphite probe head, a ceramic shell, a copper connecting bolt, a fixing nut, a copper binding post, a spring washer, a locking nut and a wire, and is installed in probe holes in the graphite tile and the heat sink substrate. All parts of the probe assembly are connected in a threaded or crimping plier crimping manner so that the probe assembly has the advantages of firmness and stability mechanically and can work in a high-temperature environment. The probe adopts a ceramic shell as a base body, and internal parts are not in contact with the heat sink substrate so that the insulating property of the probe system is ensured. The device adopts a modular structure, can be integrally disassembled and assembled, and is easy to maintain. The limiter probe array provides a direct means for measuring the three-dimensional structure of the boundary plasma.

Description

technical field [0001] The invention relates to the field of magnetic confinement plasma diagnosis, in particular to a limiter probe system suitable for a magnetic confinement device. Background technique [0002] Magnetic confinement plasma is to use a special form of magnetic field to confine electrically quasi-neutral plasma in a specific space. It is mainly used in the field of magnetic confinement fusion, including fusion devices such as tokamak, stellarator, magnetic mirror and pinch. Fusion energy is a kind of clean energy and the main way to solve human energy problems in the future. The interaction between the boundary plasma of the magnetic confinement fusion device and the first wall material in the vacuum chamber is an important topic in fusion research, because the fusion products and a part of the high-temperature plasma need to be discharged from the confinement area, which will bring high pressure to the first wall material. Thermal loads can cause material ...

AI Technical Summary

Problems solved by technology

The interaction between the boundary plasma of the magnetic confinement fusion device and the first wall material in the vacuum chamber is an important topic in fusion research, because the fusion products and a part of the high-temperature plasma need to be discharged from the confinement area, which will bring high pressure to the first wall material. Thermal loads, which can lead to material damage

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