Magnet coil for linear plasma device

A magnet coil and plasma technology, applied in plasma, greenhouse gas reduction, nuclear power generation, etc., can solve the problems of large magnetic field ripple, small magnetic induction intensity, and difficult adjustment of magnetic field
CN110290627AActive Publication Date: 2019-09-27SOUTHWESTERN INST OF PHYSICS
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWESTERN INST OF PHYSICS
Publication Date
2019-09-27

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Abstract

The present invention relates to the field of magnet coils for linear plasma devices, and specifically discloses a magnet coil for a linear plasma device. The magnet coil includes three magnet coil groups in total consisting of a large-diameter coil group, a transition coil group and a small-diameter coil group to satisfy the needs of different research tasks of the linear plasma device. The magnet coil makes full use of a gap of a flange, can generate a magnetic field with high strength and low ripple degree by separately adjusting the current of each magnet coil, and sufficiently confines the plasma. A magnetic field strength with 1800-3000 Gauss and a ripple degree less than 1% can be generated in the axis of a vacuum chamber, especially in the transition region of the magnet coil group of different diameters, the magnetic field ripple degree is also less than 1%. The magnet coil can be used in a large-scale, steady-state, high-beam, linear magnetic confinement plasma device for experimental detection of sample and component integrated plasma material interaction.
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Description

technical field

[0001] The invention belongs to the technical field of magnet coils, and in particular relates to magnet coils of linear plasma equipment. Background technique

[0002] Linear plasma devices play an important role in the experimental study of plasma-material interaction, which is a key issue in the development of practical fusion reactors. In recent years, several sets of linear plasma devices have been built in China. For example, the Hefei Institute of Plasma and Lanzhou Institute of Chemical Physics of the Chinese Academy of Sciences each built a set of plasma fluxes up to 10 20 -10 21 / m 2 The linear plasma device of .s is mainly aimed at the retention research of gases such as hydrogen isotopes; the STEP device of Beijing University of Aeronautics and Astronautics has a large nominal plasma parameter span of up to 10 19 ~10 23 / m 2 .s is currently mainly used for teaching and basic experiments; the device in Sichuan University 720 is said to have a ...

Claims

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