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Simple ion door

An ion gate, a simple technology, applied in the direction of electronic/ion optical devices, particle separator tube parts, etc., can solve the problems of high requirements for assembly personnel and assembly tools, complex ion gate processing, harsh manufacturing conditions, etc., to achieve assembly Simple and time-saving, simple structure and low cost

Inactive Publication Date: 2012-01-11
HARBIN INST OF TECH AT WEIHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2007, Professor Zare and others proposed the micromachining method of ion gates, which reduced the distance between adjacent metal wires to 0.015 mm, but the production conditions were harsh, and the ion gates had to adopt Deep Reactive Ion Etching (DRIE) technology in a clean room. ) process is made after several days
It can be seen that the existing ion gate has complex processing, high cost, long assembly time, and high requirements for assembly personnel and assembly tools

Method used

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Embodiment Construction

[0016] From figure 1 , figure 2 , image 3 It can be seen from the figure that a simple ion gate is provided with an annular insulating fixing frame 1, and the fixing frame 1 uses polyether ether ketone (PEEK) as the material of the fixing frame. PEEK has good machining performance, high applicable temperature, and can Use in a vacuum. Two sides of the center ring on the fixing frame 1 of the present invention are respectively provided with a plurality of round holes 2, the diameter of the round holes 2 is 0.15 mm, and the distance is 1.0 mm. The circular holes 2 on the said fixed frame 1 are opposite to each other in pairs on both sides of the central ring, and the diameter of the circular holes 2 is slightly larger than the diameter of the enameled wire used. The circular holes 2 are linearly and evenly arranged on the side of the fixed frame 1 , the spacing between the circular holes is even, and all the circular holes 2 are located on the same plane, which is parallel ...

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Abstract

The invention relates to a simple ion door for controlling ion motion, which is provided with an annular insulating fixing frame. A plurality of opposite circular holes are respectively formed on two sides of a central ring on the fixing frame; two enameled wires respectively circularly pass through odd and even circular holes and are fixed to the central ring of the fixing frame; and a parallel metal wire plane is formed in the central ring. The simple ion door has the advantages of simple structure, easy processing, simple and time-saving assembly, low manufacturing cost, high parallelism and uniformity between metal conductors, high planeness, convenient leading-out of control signal lines, high ion passing efficiency, and use as an ion door for an ion mobility spectrometry and a flight time mass spectrum.

Description

technical field [0001] The invention relates to a device for controlling ion movement, in particular to a simple ion gate for controlling ion movement. Background technique [0002] Ion Mobility Spectrometry (IMS) technology is a new analytical technology, which was first proposed in the 1970s as a trace detection technology. Mobility is used to characterize various chemical substances, so as to achieve the purpose of analyzing and detecting various substances. The working principle of ion mobility spectrometry, the voltage supplied by the high-voltage power supply through the series resistance makes each electrode ring have a certain voltage, and each electrode ring is separated by an insulating ring, so that a certain degree of uniform electric field is formed in the internal cavity of the instrument. The ions generated by the ionization source drift under the joint action of the electric field force and the drift gas. The role of the ion gate is to control the ion to en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/06
Inventor 姜杰周志权乔晓林赵占锋张晶晶佟少强高静廉斌
Owner HARBIN INST OF TECH AT WEIHAI
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