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Internal ion source inertial electrostatic confinement fusion device

An ion source and inertial technology, applied in fusion reactors, thermonuclear fusion reactors, nuclear power generation, etc., can solve problems such as the difficulty in improving the balance of neutron production in inertial electrostatic confinement devices, and avoid ion loss and high-voltage power supply loss, The effect of extending the oscillation time and increasing the neutron yield

Active Publication Date: 2020-06-05
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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  • Internal ion source inertial electrostatic confinement fusion device
  • Internal ion source inertial electrostatic confinement fusion device
  • Internal ion source inertial electrostatic confinement fusion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1Shown 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-shaped spherical structure, and is generally connected to a negative high voltage through a high-voltage introduction support rod 3. The high-voltage introduction support rod 3 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 ion movement, the internal ion source 4 can be placed on a plane passing through the center of the inertial electrostatic confinement device perpendicular to the high-voltage introduction of the support rod 3, figure 1 The ion traject...

Embodiment 2

[0033] 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...

Embodiment 3

[0037] This embodiment can be used in an implementation where the internal ion source is placed inside the anode of the inertial electrostatic confinement device, and can also be used in an implementation where the internal ion source is placed outside the anode of the inertial electrostatic confinement device. Its main feature is that the cathode adopts a mesh spherical latitude and longitude ring structure with cooling channels in order to reduce the working temperature of the mesh spherical cathode.

[0038] image 3 Shown is a cathode of meshed spherical warp construction with cooling channels. Wherein, there are two cooling medium passages 10 inside the high pressure introduction support rod 3, which are respectively used for the input and output of the cooling medium. The mesh spherical cathode includes one warp circle 8 and eight weft circles 9 . Both the warp circle 8 and the weft circle 9 are rotating bodies with a rectangular section, the long side direction of the...

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Abstract

The invention relates to an internal ion source inertial electrostatic confinement fusion device, which 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, and is characterized in that the anode potential of the internal ion source is lower than that of an inertial electrostatic confinement fusion device; the cathode is of a net-shaped spherical longitude and latitude circle structure, and cooling channels are formed in a longitude circle and a latitude circle. An ion motion trailperturbator is arranged in the inertial electrostatic confinement fusion device and used for changing the angular momentum of ion motion through perturbation. By adopting an internal ion source technology, the reciprocating motion of ions in the device can be restrained for a long time, the ion loss caused by returning the ions to the ion source can be avoided by adopting the ion motion trail perturbator, and the ion loss and the high-voltage power supply loss caused by ionization can be avoided by adopting the high-vacuum environment. The device can inject accumulated ions for a long time, sothat the neutron yield and the profit-loss ratio can be improved.

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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Patent Type & Authority Applications(China)
IPC IPC(8): G21B1/05G21B1/11
CPCG21B1/05G21B1/11Y02E30/10G21B1/03H05H1/03G21B1/21
Inventor 李金海刘丹
Owner CHINA INSTITUTE OF ATOMIC ENERGY