CN2735711Y - Industrial electronic accelerator extraction window - Google Patents
Industrial electronic accelerator extraction window Download PDFInfo
- Publication number
- CN2735711Y CN2735711Y CN 200420090481 CN200420090481U CN2735711Y CN 2735711 Y CN2735711 Y CN 2735711Y CN 200420090481 CN200420090481 CN 200420090481 CN 200420090481 U CN200420090481 U CN 200420090481U CN 2735711 Y CN2735711 Y CN 2735711Y
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- Prior art keywords
- extraction window
- window
- crossbeam
- flange
- electronic accelerator
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Abstract
The utility model provides the extraction window with a double-window structure of an industrial electronic accelerator. The utility model is characterized in that a crossbeam is added on the flange of the extraction window of the electronic accelerator, and wherein, the direction of the crossbeam is parallel to the direction of the beam scan. The utility model enlarges the area of the scanning window; besides, the utility model has the advantages of little lost electronic power, simple structure and easy manufacture.
Description
Technical field
The utility model relates to a kind of extraction window of industrial electronic accelerator.
Background technology
The electron accelerator extraction window is meant the window shape structure that is located at electron accelerator electronic beam current exit, and titanium foil is housed on extraction window, is used to seal the vacuum space of the inside of electron accelerator.Simultaneously, in order to make electronic beam current when passing titanium foil, the electronics of loss is few as much as possible, so the thickness of titanium foil is very little, usually at 0.04mm.
When electron accelerator adds when high-power, because the power of electronic beam current strengthens, do not burnt by high-power electron beam in order to make titanium foil, just must increase the area of extraction window, make the intensity of the electronic beam current that passes through on the titanium foil unit are constant substantially.Because the inboard of titanium foil is the vacuum of electron accelerator inside, so huge atmospheric pressure has been born in its outside.Therefore, when increasing the extraction window area, guarantee that titanium foil can be not damaged under huge pressure.
At present, the industrial electronic accelerator extraction window majority on the market is to adopt single window construction, and electronic beam current comes flyback retrace along the length of window direction, and the typical transverse of window is of a size of 40-80mm, and the length of window is generally 0.5-1.8m.When needs adopt very wide extraction window,, just need the corresponding area that increases extraction window as 10-20cm or wideer.
There are two kinds of methods to increase the area of extraction window at present.
A kind of method is that two single windows are combined use.In this structure, be separated with parts such as extraction window flange, briquetting, fastening bolt between two extraction windows.
Another is the area that increases single window as the described method of document " application in industrial electronic accelerator and the RADIATION PROCESSING thereof ", adopts reinforcement that the titanium foil of sealed vacuum is propped up.This reinforcement is perpendicular to the track while scan of electron beam, and the thickness of reinforcement is generally several millimeters.
The shortcoming of above-mentioned technology is:
1. though increased the area of extraction window, lost more electronic power.As described in second method in the prior art, because in each scan period, promptly one of electronic beam current comes and goes, and each reinforcement will be shone twice by electronic beam current, and the power of the electronic beam current that receives on the muscle accounts for the 30%-40% of gross power.
2. extraction window complex structure.As described in first method in the prior art, when two single windows merging were used together, the connection of two extraction window flanges and sealing were all very complicated.As described in second method, when making the extraction window flange, need process or install plurality of strengthening ribs, course of processing complexity.And electronics directly drops on and can cause extraction window or reinforcement heating on extraction window flange or the reinforcement, need install servicing unit additional and cool off, and causes whole apparatus structure complexity.
Summary of the invention
The purpose of this utility model is in order to overcome the defective of prior art, a kind of extraction window of double window structure of industrial electronic accelerator to be provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of extraction window of industrial electronic accelerator comprises an extraction window flange, and this extraction window parallel flange is provided with a crossbeam in the direction of electron beam scanning.
Wherein, this crossbeam places the centre of this extraction window flange.
Wherein, this crossbeam and this extraction window flange are integrated.
And between this crossbeam and this scanning flange perpendicular to the distance of electron beam scanning direction between 40-80mm.
Positive progressive effect of the present utility model is:
1. extraction window is simple in structure, is easy to processing.
2. Sun Shi electronic power is few.
Description of drawings
Fig. 1 is a principle schematic of the present utility model.
Fig. 2 is the front view of the utility model one embodiment.
Fig. 3 is the vertical view of the utility model one embodiment.
Fig. 4 is the utility model one embodiment transverse sectional view.
Embodiment
Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
As Fig. 2,3,4, at the length direction of extraction window flange 3, promptly the electronic beam current scanning direction is provided with a crossbeam 4, and this crossbeam 4 is positioned at the centre of extraction window flange 3, makes extraction window flange 3 become the double window structure, forms scanning window 21,22.The width of scanning window 21,22 can be not damaged to guarantee titanium foil between 40-80mm.
This crossbeam 4 is one with this extraction window flange 3, and adding man-hour can one-shot forming.
As Fig. 1, electronic beam current 1, enters scanning window 22 immediately and carries out opposite direction scanning after 21 interscans of scanning window along sweep trace of electron beam 11, and then enters 21 interscans of scanning window.Inswept crossbeam 4 when electronic beam current 1 only switches between scanning window 21,22.Therefore, the electronic power of loss is considerably less, is lower than 2% of gross power.
Claims (4)
1, a kind of extraction window of industrial electronic accelerator comprises an extraction window flange, it is characterized in that being provided with a crossbeam at this extraction window parallel flange on the direction of electron beam scanning.
2, industrial electronic accelerator extraction window according to claim 1 is characterized in that this crossbeam places the centre of this extraction window flange.
3, industrial electronic accelerator extraction window according to claim 1 is characterized in that this crossbeam and this extraction window flange are integrated.
4, according to each described industrial electronic accelerator extraction window of claim 1-3, it is characterized in that between this crossbeam and this scanning flange perpendicular to the distance of electron beam scanning direction between 40-80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090481 CN2735711Y (en) | 2004-09-24 | 2004-09-24 | Industrial electronic accelerator extraction window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090481 CN2735711Y (en) | 2004-09-24 | 2004-09-24 | Industrial electronic accelerator extraction window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2735711Y true CN2735711Y (en) | 2005-10-19 |
Family
ID=35265571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090481 Expired - Fee Related CN2735711Y (en) | 2004-09-24 | 2004-09-24 | Industrial electronic accelerator extraction window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2735711Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586959A (en) * | 2020-05-26 | 2020-08-25 | 浙江中烟工业有限责任公司 | Double-window leading-out irradiation device of electron curtain accelerator |
-
2004
- 2004-09-24 CN CN 200420090481 patent/CN2735711Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586959A (en) * | 2020-05-26 | 2020-08-25 | 浙江中烟工业有限责任公司 | Double-window leading-out irradiation device of electron curtain accelerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |