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An Accelerating Electrode for an Electrostatic Accelerator

A technology of accelerating electrodes and accelerators, applied in the direction of DC voltage accelerators, electrical components, accelerators, etc., can solve the problems of accelerated particle loss, complicated acceleration structure of electrostatic accelerators, and increased cost of acceleration structures, and achieves suppression of electronic loads and avalanches. effect, the effect of reducing production or retrofit costs

Active Publication Date: 2017-11-21
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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  • An Accelerating Electrode for an 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 component of an electrostatic accelerator. In order to solve the loss of accelerated particles caused by the "electronic load" suppression measures of the existing electrostatic accelerator accelerating tube, simplify the accelerating structure and reduce the cost of the accelerating structure, the invention provides an accelerating electrode of the electrostatic accelerator. The accelerating electrode of the electrostatic accelerator is composed of a series of electrode plates, the series of electrode plates include a conical electrode plate, the conical electrode plate has a conical structure, and an electrode hole is opened at the cone angle of the conical structure , the cone surface structure is a cone surface, an elliptical cone surface or a pyramid surface. The accelerating electrode of the electrostatic accelerator of the present invention can provide focusing force to the beam current accelerated in the forward direction, and provide defocusing force to the beam current accelerated in the reverse direction, while suppressing "electronic load" and "full voltage effect", avoiding being The loss of accelerated particles; at the same time, its accelerating structure is relatively simple, which reduces the cost of production or modification of the accelerating structure, and will not adversely affect the electrostatic accelerator.

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 Patents(China)
IPC IPC(8): H05H5/04H05H5/02
Inventor 李金海韩广文
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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