A method for fueling the plasma core of a fusion reactor by using sandwich projectiles

Abstract

The invention discloses a method for feeding the plasma core of a fusion reactor by using a sandwich projectile. The sandwich projectile is placed in a feeding chamber, and a vacuum pump unit is connected to the feeding chamber to provide a vacuum environment for the feeding chamber to avoid surface oxidation of the metal shell of the sandwich projectile; the feeding pipe is connected to the feeding chamber. Chamber and projectile injector, the projectile injector is a device that provides power for high-speed projectiles; the present invention adopts the method of double-layer "sandwich" projectile injection, the surface layer uses lithium or beryllium protective shell, and the inner layer is filled with solid fusion fuel hydrogen isotope or deuterium lithium material. During the high-temperature plasma discharge process of the fusion reactor, the sandwich projectile is injected into the plasma at a high speed, and the ablation resistance of the metal shell on the surface of the sandwich projectile is used to protect the nuclear fuel in the inner layer of the sandwich projectile from passing through the platform with a steep edge of the plasma. zone, into the plasma core, to meet the needs of burning plasma core feeding.

Description

technical field [0001] The invention relates to the field of fusion reactors, and mainly relates to a method for realizing feeding of plasma cores of fusion reactors by using sandwich projectiles. Background technique [0002] Energy is the basis for the maintenance and development of human civilization. Magnetic confinement thermonuclear fusion energy, which is efficient, clean, safe, and rich in raw materials, can be said to be the best way for mankind to solve the energy crisis. The comprehensive construction of the International Thermonuclear Experimental Reactor (ITER) provides an unprecedented opportunity for the research of magnetic confinement thermonuclear fusion. [0003] Future ITER devices are planned to operate in a highly confined plasma mode (H-mode). In the high confinement mode, the plasma boundary of the tokamak spontaneously forms a pedestal of temperature, density and pressure. In a very narrow region in the radial direction (about 1>r / a>0.9), the...

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Problems solved by technology

[0006] The purpose of the present invention is to make up for the defects of the prior art, and to provide a method of using sandwich projectiles to realize the charging of the plasma core of the fusion reactor, so as to solve the problem of feeding the plasma core in the fusion reactor device in the future

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