Method for charging fusion reactor plasma core by using sandwich projectiles

Abstract

The invention discloses a method for charging a fusion reactor plasma core by using sandwich projectiles. The sandwich projectiles are placed in a charging room, and a vacuum pump unit is connected with the charging room to provide a vacuum environment for the charging room to avoid surface oxidation of metal shells of the sandwich projectiles; and a feeding pipe is connected with the charging room and a projectile injector, and the projectile injector is a device providing power for high-speed projectiles. According to the method, a double-layer sandwich projectile injection way is adopted, lithium or beryllium protective shells are used on the surface layers, and the inner layers are filled with solid fusion fuel hydrogen isotopes or lithium deuteride materials; and the sandwich projectiles are injected into plasma at high speed during discharge of the fusion reactor high-temperature plasma, ablative resistance of the metal shells on the surface layers of the sandwich projectiles isused for protecting nuclear fuel in the inner layers of the sandwich projectiles passing through a steep table base region at the edge of the plasma and enter the plasma core, and the requirement forcharging the combustion plasma core is met.

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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