A Passive Feedback Structure Suitable for Rapid Plasma Control in Future Fusion Reactors

Abstract

The invention discloses a passive feedback structure suitable for controlling plasmas of a future fusion reactor rapidly. The passive feedback structure comprises a plurality of passive feedback structure independent blocks, the inner sides of the passive feedback structure independent blocks and the outer sides of the passive feedback structure independent blocks are provided with detachable cladding assemblies and permanent tritium breeding claddings respectively, and the passive feedback structure independent blocks are arranged evenly along the 360-degree angle in the large ring direction to form a structure with the overall appearance in the shape of a drum. The passive feedback structure independent blocks are composed of conductive copper sheets, stainless steel supporting base materials, cooling channels and side rib plates. The passive feedback structure can achieve rapid control over the plasmas and avoid instability of vertical displacement of the plasmas while meeting the requirements of the structure that a future fusion reactor increases a tritium breeding cladding, a divertor window and the like under the condition that space is limited, meanwhile, play the role of the supporting tritium breeding cladding structure, meet the requirements for long-term high-temperature resistance and irradiation, and guarantee stable operation of the plasmas of the future fusion reactor device.

Description

technical field [0001] The invention belongs to the field of superconducting fusion, and in particular relates to a passive feedback structure suitable for rapidly controlling plasma in future fusion reactors. Background technique [0002] When superconducting fusion devices are running, more D-shaped cross-section plasmas with large elongation ratios are used to increase the β value (β is the ratio of plasma pressure to magnetic field energy density, the higher the value, the greater the ability of the magnetic field to confine the plasma The better), but the plasma with a large draw ratio will produce vertical instability during operation (the plasma is disturbed in the vertical direction). Vertical instability is an important factor affecting plasma rupture. Therefore, many superconducting tokamak experimental devices currently use internally designed conductive plates with large dimensions as passive feedback coils. This kind of passive feedback coil can be effectively ...

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Problems solved by technology

[0003] However, in order to realize the deuterium-tritium reaction in the future fusion reactor, structures such as tritium breeding cladding must be added, so the current passive feedback coil structure using large conductive plates will not continue to be effectively used in the space structure and neutron irradiation. Future Fusion Reactor Device

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