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Accelerating electrode for electrostatic accelerator

A technology for accelerating electrodes and accelerators, applied in the direction of DC voltage accelerators, electrical components, accelerators, etc., can solve the problems of increasing the cost of accelerating structures, complicating the accelerating structure of electrostatic accelerators, and accelerating particle loss, etc., to suppress the avalanche effect and avoid losses. , the effect of suppressing the electronic load

Active Publication Date: 2015-04-29
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the adoption of the above measures will bring about the loss of accelerated particles, complicate the acceleration structure of the electrostatic accelerator, have some adverse effects on the electrostatic accelerator, and also increase the cost of the acceleration structure

Method used

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  • Accelerating electrode for electrostatic accelerator

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Embodiment 1

[0019] An accelerating electrode of an electrostatic accelerator, which is composed of a series of electrode plates, including 10 conical electrode plates, which are divided into two sections, with 5 pieces in each section. The conical electrode plates have a conical surface structure, and the conical surface Electrode holes are opened at the cone angle of the structure, the cone surface structure is a cone surface, and the cone angle of the cone where the cone surface is located is 90°.

[0020] The proton beams of 50 keV were accelerated under the same working conditions by using the above-mentioned accelerating electrode and the flat plate electrode with basically the same structure. The results show that: the proton beam accelerated by the above-mentioned accelerating electrode completely passes through the accelerating section without loss; while the proton beam accelerated by the flat plate electrode is partially intercepted by the last two electrode sheets, and loss occu...

Embodiment 2

[0022] An accelerating electrode of an electrostatic accelerator is composed of a series of electrode plates, including 12 conical electrode plates, the conical electrode plates have a conical structure, and electrode holes are opened at the cone angle of the conical structure. The cone surface structure is a quadrangular pyramid surface, and the acute angle between each side of the quadrangular pyramid surface and the beam movement axis is 60°.

[0023] The proton beams of 50 keV were accelerated under the same working conditions by using the above-mentioned accelerating electrode and the flat plate electrode with basically the same structure. The results show that: the proton beam accelerated by the above-mentioned accelerating electrode passes through the accelerating section without loss; while the proton beam accelerated by the flat plate electrode is partially intercepted by the last three electrode sheets, and loss occurs, which proves that the accelerating electrode of ...

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Abstract

The invention relates to a part of an electrostatic accelerator, aims to solve the problem of accelerated particle loss caused by an electronic load suppression measure of an accelerating tube of the conventional electrostatic accelerator, simplify the accelerating structure and reduce the cost of the accelerating structure, and provides an accelerating electrode for an electrostatic accelerator. The accelerating electrode for the electrostatic accelerator consists of a series of electrode plates, wherein the series of electrode plates comprise conical surface electrode plates with conical surface structures; electrode holes are formed in cone angles of the conical surface structures; the conical surface structures are circular conical surfaces, elliptical conical surfaces or pyramidal surfaces. According to the accelerating electrode for the electrostatic accelerator, focusing force can be provided for forwards-accelerated beam current, and defocusing force can be provided for backwards-accelerated beam current, so that electronic loads and full-voltage effects are suppressed, and meanwhile, accelerated particle loss is avoided; in addition, the accelerating electrode is simpler in accelerating structure, the production or modification cost of the accelerating structure is reduced, and adverse impact on the electrostatic accelerator is avoided.

Description

technical field [0001] The invention relates to a component of an electrostatic accelerator, in particular to an accelerating electrode of an electrostatic accelerator. Background technique [0002] Electrostatic accelerator is a classic accelerator widely used in nuclear physics experiments, ion implantation, material analysis and material irradiation and other fields. The electrostatic accelerator first generates electrostatic high voltage through a high-voltage power supply, and loads the high voltage on an accelerating structure such as an electrostatic accelerating tube. After the ion source generates and extracts ions or electrons, it is accelerated to the required energy by the electrostatic high voltage in the accelerating tube. The electrostatic accelerating structure is the key component of the electrostatic accelerator. [0003] The acceleration voltage that the electrostatic accelerator can provide will not be very high, the highest being more than ten MV. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H5/04H05H5/02
Inventor 李金海韩广文
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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