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Inertial electrostatic confinement fusion device adopting internal ion source

An ion source, inertial technology, applied in fusion reactors, thermonuclear fusion reactors, nuclear power generation and other directions, can solve the problem of difficulty in improving the neutron yield break-even of inertial electrostatic confinement devices, and avoid ion loss and high-voltage power loss, The effect of avoiding ion loss and prolonging the shaking time

Inactive Publication Date: 2019-06-21
CHINA INSTITUTE OF ATOMIC ENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, it is difficult to increase the neutron yield and breakeven of an IESD due to the above reasons

Method used

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  • Inertial electrostatic confinement fusion device adopting internal ion source
  • Inertial electrostatic confinement fusion device adopting internal ion source
  • Inertial electrostatic confinement fusion device adopting internal ion source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 Shown is an embodiment in which the internal ion source 4 is placed in the anode 1 of the inertial electrostatic confinement device. The anode 1 can be used as a vacuum chamber wall to be grounded, or a mesh ball can be used to connect positive high voltage and be placed in a larger grounded vacuum chamber intramural. The cathode 2 of the inertial electrostatic confinement device adopts a net-like spherical structure, and is generally connected to a negative high voltage through a high-voltage introduction support rod 3, which is insulated from the anode 1 and the vacuum chamber wall (if it exists). In order to avoid the adverse effect of the high-voltage introduction of the support rod 3 on the ion movement, the internal ion source 4 can be placed on a plane perpendicular to the high-voltage introduction of the support rod 3 and passing through the center of the inertial electrostatic confinement device, figure 1 The ion trajectory 6 in can also be in this pl...

Embodiment 2

[0031] figure 2 Shown is an embodiment in which the internal ion source 4 is placed outside the anode 1 of the inertial electrostatic confinement device. The device has holes on the sphere of the anode 1 of the inertial electrostatic confinement device, and ions are injected into the inertial electrostatic confinement device through the holes. The potential of the internal ion source plasma and the anode 41 of the internal ion source is lower than the potential of the anode 1 of the inertial electrostatic confinement device. The cathode 42 of the internal ion source is connected to a hollow cylinder and inserted into the anode 1 of the inertial electrostatic confinement device. The depth of insertion is the position where the potential of the inertial electrostatic confinement device is equal to the potential of the internal ion source cathode 42 when not inserted. Of course, the depth can vary. The depth can be adjusted as long as it does not affect the implantation of the i...

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Abstract

The invention relates to an inertial electrostatic confinement fusion device adopting internal ion source. The device comprises an anode, a cathode, a high-voltage introduction support rod connected with the cathode, an internal ion source, a vacuum system and a high-voltage system, wherein the anode potential of the internal ion source is lower than that of the inertial electrostatic confinementfusion device; an ion movement trajectory perturbation device is arranged in the inertial electrostatic confinement fusion device for perturbation to change the angular momentum of ion motion. Back and forth movement of ions in the device can be confined for a long time with the internal ion source technology, the ion loss caused by return of the ions to the ion source can be avoided by the ion movement trajectory perturbation device, and the ion loss and the high-voltage power loss caused by ionization can be avoided in a high-vacuum environment. Since the accumulated ions can be injected fora long time, the neutron yield and profit-loss ratio can be increased.

Description

technical field [0001] The invention relates to nuclear fusion and neutron source technology, in particular to an internal ion source inertial electrostatic confinement fusion device. Background technique [0002] At present, nuclear fusion technologies at home and abroad mainly include four categories: tokamak, laser inertial confinement, Z-pinch and inertial electrostatic confinement. These technologies have their own advantages and disadvantages. Among them, the inertial electrostatic confinement device is the smallest, the power consumption is the smallest, there is no fusion ignition problem, and there is no complicated plasma dynamics problem. The main disadvantage is that the neutron yield is relatively low, and the current distance from energy breakeven is relatively large. . At present, neutron sources at home and abroad are mainly divided into radioisotope neutron sources and accelerator neutron sources. There are many types of accelerator neutron sources, includi...

Claims

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Application Information

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IPC IPC(8): G21B1/05G21B1/11
CPCG21B1/05G21B1/11Y02E30/10G21B1/03H05H1/03G21B1/21
Inventor 李金海
Owner CHINA INSTITUTE OF ATOMIC ENERGY