CN103268849A - Electronic gun for industrial electron irradiation accelerator - Google Patents
Electronic gun for industrial electron irradiation accelerator Download PDFInfo
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- CN103268849A CN103268849A CN201310152841XA CN201310152841A CN103268849A CN 103268849 A CN103268849 A CN 103268849A CN 201310152841X A CN201310152841X A CN 201310152841XA CN 201310152841 A CN201310152841 A CN 201310152841A CN 103268849 A CN103268849 A CN 103268849A
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- filament
- electronic gun
- accelerator
- flange
- titanium
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Abstract
The invention discloses an electronic gun for an industrial electron irradiation accelerator. The electronic gun comprises two aluminum oxide ceramic pieces, wherein a filament rod component is arranged at the lower end of each aluminum oxide ceramic piece, a flange is arranged between each aluminum oxide ceramic piece and each filament rod component, a filament is fixed between the filament rod components, and a titanium flat board grid is arranged below the filament. The electronic gun solves the problem that in the prior art, an electronic gun is short in service life. Due to the sealing technology of the titanium flange and the silver filament, oxide etch of the filament caused by air leakage is avoided, and the vacuum degree of a tube is improved. By the adoption of the titanium metal parts, influence on beam extraction by an electromagnetic field of the accelerator is avoided, and quality of beams is improved. Due to the adoption of the filament made of rhenium tungsten filament materials, the service life of the electronic gun is prolonged, and accordingly the overall performance of the accelerator is improved. The electronic gun has the advantage that the filament can be conveniently mantled, dismantled and replaced.
Description
Technical field
The present invention relates to a kind of electron gun, especially a kind of electron gun for the industrial electronic irradiation accelerator belongs to the accelerator art field.
Background technology
Electron accelerator is the high-power industrial accelerator for RADIATION PROCESSING.Can be used for processing, speciality polymer material, composite material processing, food fresh keeping, sterilization of radiation cross-link wire, cable, material contracting with heat etc.
Electron gun is one of accelerator core component.It not only guarantees the beam power that provides specified, and its extraction system, and focus characteristics is related to accelerator beam optics performance.The electron gun life-span is accelerator one of effective key in application problem in industrial production especially.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electron gun for the industrial electronic irradiation accelerator, has improved the influence of line being drawn because of the accelerator electromagnetic field, has improved the quality of line, has prolonged the service life of electron gun.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of electron gun for the industrial electronic irradiation accelerator, comprise two aluminium oxide ceramics spares, the lower end of described aluminium oxide ceramics spare is provided with the stalk assembly, be provided with flange between described aluminium oxide ceramics spare and the stalk assembly, between the described stalk assembly filament is arranged fixedly, the below of described filament is provided with the dull and stereotyped grid of titanium.
Aforesaid a kind of electron gun for the industrial electronic irradiation accelerator is characterized in that: described flange is the titanium flange.
Aforesaid a kind of electron gun for the industrial electronic irradiation accelerator is characterized in that: described filament material is the rhenium tungsten filament that contains 5% rhenium.
Aforesaid a kind of electron gun for the industrial electronic irradiation accelerator is characterized in that: fix by fixture between the dull and stereotyped grid of described titanium and the flange.
The invention has the beneficial effects as follows: by titanium flange and filamentary silver Sealing Technology, improved because leaking gas to the oxide etch of filament and the vacuum degree of accelerating tube, owing to adopted the titanium parts, improved the influence of line being drawn because of the accelerator electromagnetic field, improved quality of beam, adopted the filament of rhenium tungsten filament material to improve electron gun service life, thereby also improved the accelerator overall performance, this electron gun is installed, and changes also characteristics such as very convenient of filament.
Description of drawings
Fig. 1 is the structural representation of a kind of electron gun for the industrial electronic irradiation accelerator of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, a kind of electron gun for the industrial electronic irradiation accelerator, comprise two aluminium oxide ceramics spares 1, the lower end of described aluminium oxide ceramics spare 1 is provided with stalk assembly 3, be provided with flange 2 between described aluminium oxide ceramics spare 1 and the stalk assembly 3, between the described stalk assembly 3 filament 5 arranged fixedly, the below of described filament 5 is provided with the dull and stereotyped grid 6 of titanium, described flange 2 is the titanium flange, and is fixing by fixture 4 between the dull and stereotyped grid 6 of described titanium and the flange 2.By silver-bearing copper weldering that stalk assembly 3 is integrally welded with aluminium oxide ceramics spare 1 and flange 2, its air-tightness is good, improved because of gas leakage to the oxide etch of filament and the vacuum degree of accelerating tube, prolonged filament useful life.Make parts owing to used titanium instead, improved the influence of line being drawn because of the accelerator electromagnetic field, improved quality of beam.
Filament 5 materials are the rhenium tungsten filament that contains 5% rhenium, have improved electron gun service life, thereby have also improved the accelerator overall performance, and this electron gun is installed, and change also characteristics such as very convenient of filament.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (4)
1. electron gun that is used for the industrial electronic irradiation accelerator, it is characterized in that: comprise two aluminium oxide ceramics spares (1), the lower end of described aluminium oxide ceramics spare (1) is provided with stalk assembly (3), be provided with flange (2) between described aluminium oxide ceramics spare (1) and the stalk assembly (3), filament (5) is fixedly arranged between the described stalk assembly (3), and the below of described filament (5) is provided with the dull and stereotyped grid (6) of titanium.
2. a kind of electron gun for the industrial electronic irradiation accelerator according to claim 1, it is characterized in that: described flange (2) is the titanium flange.
3. a kind of electron gun for the industrial electronic irradiation accelerator according to claim 1 and 2, it is characterized in that: described filament (5) material is the rhenium tungsten filament that contains 5% rhenium.
4. a kind of electron gun for the industrial electronic irradiation accelerator according to claim 3 is characterized in that: fixing by fixture (4) between the dull and stereotyped grid (6) of described titanium and the flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310152841XA CN103268849A (en) | 2013-04-28 | 2013-04-28 | Electronic gun for industrial electron irradiation accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310152841XA CN103268849A (en) | 2013-04-28 | 2013-04-28 | Electronic gun for industrial electron irradiation accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103268849A true CN103268849A (en) | 2013-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310152841XA Pending CN103268849A (en) | 2013-04-28 | 2013-04-28 | Electronic gun for industrial electron irradiation accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103268849A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109125958A (en) * | 2018-11-05 | 2019-01-04 | 深圳铭杰医疗科技有限公司 | The connection structure and radiotherapy apparatus of accelerating tube and line needle |
| CN110335799A (en) * | 2019-04-25 | 2019-10-15 | 深圳凯禾电子束装置技术有限公司 | Electron-beam tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059792A (en) * | 1989-10-16 | 1991-10-22 | Hitachi, Ltd. | Thermal field emission electron gun |
| WO2003054907A1 (en) * | 2001-12-20 | 2003-07-03 | Koninklijke Philips Electronics N.V. | Cathode ray tube and electron gun |
| CN2735536Y (en) * | 2004-09-24 | 2005-10-19 | 中国科学院上海应用物理研究所 | Cathode arrangement for strong current electronic gun |
| CN203205372U (en) * | 2013-04-28 | 2013-09-18 | 江苏达胜加速器制造有限公司 | Electron gun for industrial electron irradiation accelerator |
-
2013
- 2013-04-28 CN CN201310152841XA patent/CN103268849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059792A (en) * | 1989-10-16 | 1991-10-22 | Hitachi, Ltd. | Thermal field emission electron gun |
| WO2003054907A1 (en) * | 2001-12-20 | 2003-07-03 | Koninklijke Philips Electronics N.V. | Cathode ray tube and electron gun |
| CN2735536Y (en) * | 2004-09-24 | 2005-10-19 | 中国科学院上海应用物理研究所 | Cathode arrangement for strong current electronic gun |
| CN203205372U (en) * | 2013-04-28 | 2013-09-18 | 江苏达胜加速器制造有限公司 | Electron gun for industrial electron irradiation accelerator |
Non-Patent Citations (1)
| Title |
|---|
| 秦久昌等: ""高压型低能大功率辐照加速器电子枪研制"", 《原子能科学技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109125958A (en) * | 2018-11-05 | 2019-01-04 | 深圳铭杰医疗科技有限公司 | The connection structure and radiotherapy apparatus of accelerating tube and line needle |
| CN110335799A (en) * | 2019-04-25 | 2019-10-15 | 深圳凯禾电子束装置技术有限公司 | Electron-beam tube |
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Application publication date: 20130828 |