Method for heating plasma by utilizing neutrons

A plasma and plasma technology, applied in the field of heating plasma with neutrons, can solve the problems of high energy consumption and tritium self-sustaining incompatibility, and achieve the effects of preventing environmental pollution, simplifying the tritium system, and improving economy

Active Publication Date: 2014-03-12
罗天勇 +1
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Problems solved by technology

[0005] Aiming at the problems of high energy consumption and incompatibility with tritium self-sustaining in the auxiliary heating method adopted by the current magnetic confinement fusion device, we propose a method of using neutrons to assist the plasma in the magnetic confinement device

Method used

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  • Method for heating plasma by utilizing neutrons

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Embodiment 1

[0031] Embodiment 1 Application of the method in magnetic mirror device

[0032] Magnetic Mirror is a special magnetic field configuration with weak middle and strong ends. There are many ways to make a magnetic mirror. The magnetic mirror structure that is more suitable for nuclear fusion is composed of many turns of coils wound into a linear tube-shaped tube chamber. The coil density at both ends is higher than that in the middle, so the magnetic field at both ends is stronger than that in the middle. When the particle precessing around the magnetic field line enters the strong magnetic field region at both ends from the weak magnetic field region, it will be subjected to a reverse force. This force forces the particle to slow down, shorten the pitch of the orbit, and then stop and reflect back. After the reflected particle reaches the center of the tube, it spirals forward to the other end, and is reflected back after reaching the port. The particles are like light bouncin...

Embodiment 2

[0048] Example 2 Application of this method as an auxiliary heating method in the existing tokamak fusion experimental device

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Abstract

The invention discloses a method and a system scheme for constructing plasma capable of realizing a magnetic confinement fusion reaction by heating a mixture consisting of lithium, tritium and deuterium in a magnetic confinement device by utilizing neutrons. The neutrons required for heating the plasma are provided by performing doubling, moderating and reflecting on an external neutron source or fusion neutrons generated by a fusion reaction in a device through a cladding on the container wall of the magnetic confinement device. The lithium in the plasma is obtained by injecting lithium metal nano-particles or lithium deuteride projectiles. According to the method and the system scheme, the plasma is heated by MeV-level high-energy tritium particles and helium particles generated by a fission reaction caused by bombarding the lithium in the plasma by the neutrons. The plasma formed and maintained by the heating method is mainly deuterium lithium plasma. According to the heating method-based magnetic confinement fusion device, the problem about tritium self-sustaining is not required to be considered, the design of a fusion reactor is greatly simplified, and the economical efficiency of the fusion reactor is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of magnetic confinement fusion, and specifically relates to a method of using neutrons to heat a mixture composed of lithium 6, tritium and deuterium in a magnetic confinement device (tokamak, magnetic mirror, etc.) to establish a magnetic confinement fusion reaction that can be realized The plasma method and related system scheme design are used to solve the contradiction between the heating method and tritium self-sustainment faced by the current tokamak fusion experimental device, and to realize the possibility of miniaturization of the magnetic confinement fusion device. Background technique [0002] According to the current development trend of magnetic confinement plasma fusion control technology, the magnetic confinement fusion demonstration reactor after the International Thermonuclear Experimental Reactor (ITER) will mainly use deuterium-tritium as the basic fuel. Deuterium is relatively abundant in...

Claims

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Application Information

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IPC IPC(8): G21B1/05
CPCY02E30/126Y02E30/10
Inventor 罗天勇张建利
Owner 罗天勇
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