CN101571509A - Ion imaging shielding electrode system - Google Patents
Ion imaging shielding electrode system Download PDFInfo
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- CN101571509A CN101571509A CNA2008100938026A CN200810093802A CN101571509A CN 101571509 A CN101571509 A CN 101571509A CN A2008100938026 A CNA2008100938026 A CN A2008100938026A CN 200810093802 A CN200810093802 A CN 200810093802A CN 101571509 A CN101571509 A CN 101571509A
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Abstract
The invention relates to an ion imaging shielding electrode system comprising a stainless steel shielding cylinder, electrode plates, a ceramic insulated column, a base, electrode fixing plates and a closed cover. The stainless steel shielding cylinder is of a cylindrical hollow structure; and the front part and the back part of the shielding cylinder are completely closed by the closed cover and the base. The whole shielding cylinder is grounded; the base is fixed on the side wall of a vacuum cavity by screws. The shielding cylinder is internally provided with 19 oxygen-free copper electrodes; the electrodes are concentric annular copper sheets and are divided into two groups; all electrode plates are fixed on the ceramic insulated column; the back end of the ceramic insulated column is fixed on the base by the screws, and the front end is fixed on the electrode fixing plates; and the side wall of the shielding cylinder is provided with a long and narrow notch to guide electrode wires. The invention has good ion focusing effect, better speed resolution than 2 percent and obvious shielding function to external electromagnetic signals and is suitable for a weak signal ion imaging test of a small electric field.
Description
Technical field
The present invention relates to a kind of imaging electrode, relate in particular to a kind of ion imaging shielding electrode system.
Background technology
In spectral analysis and ion detection experiment, can focus on the detection plane in order to make ion, can adopt a kind of ion imaging electrode to realize.In the laser dissociation dynamic experiment, a kind of device that is called as the velocity focusing electrode is arranged, by changing alive relative size on the different electrode slices, realize that ion focuses on detection plane.But this velocity focusing electrode structure is too simple, function singleness, and do not have electromagnetic shielding system, the external interference signal is big to its influence.
Summary of the invention
The present invention is in order to solve the problems of the technologies described above, a kind of ion imaging shielding electrode system is proposed, this system can realize that not only the ion scattering ball well focuses under the different situations, because the entire electrode system is in the shielding cylinder, outer bound pair electrode interior electric field does not have influence substantially simultaneously.
Concretely, the invention discloses a kind of ion imaging shielding electrode system, comprise stainless steel shielding tube, electrode slice, ceramic insulation post, base, electrode stator, closing cap.Described stainless steel shielding tube is better than 1% cylindrical hollow configuration for right alignment, the front and back of shielding cylinder closing cap and base complete closed.Whole shielding cylinder ground connection, base is fixed on the sidewall of vacuum cavity with screw.19 oxygen-free copper electrodes are arranged in the shielding cylinder, and described electrode is the donut copper sheet, and electrode is divided into two groups, and 6 spacings of close base are 10mm, and 13 spacings of back are 5mm.All electrode slices all are fixed on the ceramic insulation post.Described ceramic insulation post rear end is fixed on the base with screw, and front end is fixed on the electrode stator.On the sidewall of shielding cylinder, have a long and narrow gap, in order to the extraction electrode electric wire.
Ion focus of the present invention is effective, and velocity resolution is better than 2%, and the electromagnetic signal shielding action is obvious to external world simultaneously, is applicable to little electric field weak signal ion imaging experiment.
Description of drawings
The package assembly synoptic diagram of back additional copy invention.
Embodiment
Ion imaging shielding electrode system disclosed by the invention comprises: electrode pad set 1, electrode pad set 2, ceramic insulation post 3, stainless steel shielding tube 4, electrode stator 5, closing cap 6, base 7 and fixed screw 8.
As shown in drawings, the two ends of stainless steel shielding tube 4 are sealed with base 7 and closing cap 6, and base 7 usefulness screws 8 are fixed on the sidewall of vacuum chamber.Inner 19 plate electrodes are in the state with extraneous complete closed.Electrode is divided into two groups, and electrode pad set 1 constitutes ion and draws the zone, and the ion scattering ball is launched to enlarge in this zone fully.Electrode pad set 2 constitutes the ion acceleration region, and it is much bigger that this regional electric field ratio is drawn the zone, and the ion scattering ball is by the very fast detector that accelerates to.The effect of ceramic insulation post 3 has two, and the one, make different electrode slices insulated from each other, the 2nd, play the effect of support, make 19 plate electrodes have good concentricity.
Below practical operation of the present invention is described, further to understand the annexation of structure of the present invention and parts.
Step 1, ceramic insulation post 3 is passed electrode pad set 1 successively and organizes 2.
Step 2, the ceramic insulation post is fixed on the base, electrode stator 5 is buckled on its top.
Step 3, closing cap 6 is fixed to the front end of stainless steel shielding tube 4.
Step 4, the electric wire on the electrode slice is drawn from the sidewall of shielding cylinder.
Step 5, closing cap 6 is placed the top and fixing of electrode stator.
Step 6, add different voltage in electrode pad set 1 on 2 with organizing, the ratio of regulation voltage realizes that ion velocity focuses on.
Ion focus of the present invention is effective, and velocity resolution is better than 2%, and the electromagnetic signal shielding action is obvious to external world simultaneously, is applicable to little electric field weak signal ion imaging experiment, has a extensive future in the chemical kinetics experiment.
Claims (3)
1. an ion imaging shielding electrode system is characterized in that, comprises stainless steel shielding tube, electrode slice, ceramic insulation post, base, electrode stator, closing cap.Described stainless steel shielding tube is a cylindrical hollow configuration, the front and back of shielding cylinder closing cap and base complete closed.Whole shielding cylinder ground connection, base is fixed on the sidewall of vacuum cavity with screw.19 oxygen-free copper electrodes are arranged in the shielding cylinder, and described electrode is the donut copper sheet, and electrode is divided into two groups, and all electrode slices all are fixed on the ceramic insulation post.Described ceramic insulation post rear end is fixed on the base with screw, and front end is fixed on the electrode stator.On the sidewall of shielding cylinder, have a long and narrow gap, in order to the extraction electrode electric wire.Ion focus of the present invention is effective, and velocity resolution is better than 2%, and the electromagnetic signal shielding action is obvious to external world simultaneously, is applicable to little electric field weak signal ion imaging experiment.
2. ion imaging shielding electrode system as claimed in claim 1 is characterized in that, electrode slice is divided into two groups, regulates added voltage on the two arrays of electrodes sheet, can realize that ion velocity focuses on.
3. ion imaging shielding electrode system as claimed in claim 1 is characterized in that, entire electrode is in the stainless steel shielding cylinder, and electric field region is with extraneous isolated by shielding cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100938026A CN101571509A (en) | 2008-04-29 | 2008-04-29 | Ion imaging shielding electrode system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100938026A CN101571509A (en) | 2008-04-29 | 2008-04-29 | Ion imaging shielding electrode system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571509A true CN101571509A (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100938026A Pending CN101571509A (en) | 2008-04-29 | 2008-04-29 | Ion imaging shielding electrode system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571509A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015974A (en) * | 2012-12-25 | 2013-04-03 | 中国海洋石油总公司 | Measuring probe of oil-base mud logger |
| CN103094032A (en) * | 2011-11-07 | 2013-05-08 | 北京中科信电子装备有限公司 | Multi-electrode beam focusing adjusting device and method |
| CN103137407A (en) * | 2011-11-25 | 2013-06-05 | 北京中科信电子装备有限公司 | Multi-electrode beam focus regulating device |
| CN106057629A (en) * | 2016-07-26 | 2016-10-26 | 南京信息工程大学 | Low electric field optoelectronic imager |
-
2008
- 2008-04-29 CN CNA2008100938026A patent/CN101571509A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094032A (en) * | 2011-11-07 | 2013-05-08 | 北京中科信电子装备有限公司 | Multi-electrode beam focusing adjusting device and method |
| WO2013067854A1 (en) * | 2011-11-07 | 2013-05-16 | 北京中科信电子装备有限公司 | Multi-electrode beam focusing regulation device and method |
| CN103137407A (en) * | 2011-11-25 | 2013-06-05 | 北京中科信电子装备有限公司 | Multi-electrode beam focus regulating device |
| CN103015974A (en) * | 2012-12-25 | 2013-04-03 | 中国海洋石油总公司 | Measuring probe of oil-base mud logger |
| CN103015974B (en) * | 2012-12-25 | 2015-09-23 | 中国海洋石油总公司 | A kind of oil-base mud logging instrument measuring probe |
| CN106057629A (en) * | 2016-07-26 | 2016-10-26 | 南京信息工程大学 | Low electric field optoelectronic imager |
| CN106057629B (en) * | 2016-07-26 | 2018-04-13 | 南京信息工程大学 | A kind of existing fringing field photoelectronic imaging instrument |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Chang Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091104 |