Design and verification of a wide range and high precision electron gun system
BackgroundGrid-controlled electron guns mostly use mesh grid and extract pulsed beam current; there is little research on the wide-range direct current beam.PurposeThis study aims to design a wide-range high-accuracy direct current electron gun to meet the requirement of the Low Energy Electron Acce...
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| Format: | Article |
| Language: | zho |
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Science Press
2022-05-01
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| Series: | He jishu |
| Subjects: | |
| Online Access: | https://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.050202&lang=zh |
| _version_ | 1811169635477749760 |
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| author | ZHANG Haowei WANG Shengli LI Deming HUANG Jianming |
| author_facet | ZHANG Haowei WANG Shengli LI Deming HUANG Jianming |
| author_sort | ZHANG Haowei |
| collection | DOAJ |
| description | BackgroundGrid-controlled electron guns mostly use mesh grid and extract pulsed beam current; there is little research on the wide-range direct current beam.PurposeThis study aims to design a wide-range high-accuracy direct current electron gun to meet the requirement of the Low Energy Electron Accelerator and Beam Line.MethodsBased on the original diode electron gun, a control grid was added to improve the control range and accuracy of the accelerator to form a triode electron gun. Then, the CST Particle Studio was employed to simulate the influence of some structural parameters of the triode electron gun on the extracted beam current, and obtained simulation result of electron gun was verified by Particle Beam GUN Simulation (PBGUNS) software. Finally, the experimental verification of design scheme was carried out on the electron gun experimental platform for optimizing the structure of electron gun. Several main structure parameters were changed to adjust beam current.ResultsThe experimental results show the optimized electron gun structure can extract 1 µA~50 mA high-quality beam when using cathode primary heating voltage as coarse adjustment and grid voltage as fine adjustment.ConclusionsThe influence law of gun structure parameters on beam current in the experiment is verify by simulation. The optimized gun structure meets the project requirements. |
| first_indexed | 2024-04-10T16:45:33Z |
| format | Article |
| id | doaj.art-85ed604bdc7f4b4885a93a02a9ff7a00 |
| institution | Directory Open Access Journal |
| issn | 0253-3219 |
| language | zho |
| last_indexed | 2024-04-10T16:45:33Z |
| publishDate | 2022-05-01 |
| publisher | Science Press |
| record_format | Article |
| series | He jishu |
| spelling | doaj.art-85ed604bdc7f4b4885a93a02a9ff7a002023-02-08T00:53:34ZzhoScience PressHe jishu0253-32192022-05-01455182410.11889/j.0253-3219.2022.hjs.45.0502020253-3219（2022）05-0018-07Design and verification of a wide range and high precision electron gun systemZHANG Haowei0WANG Shengli1LI Deming2HUANG Jianming3Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaBackgroundGrid-controlled electron guns mostly use mesh grid and extract pulsed beam current; there is little research on the wide-range direct current beam.PurposeThis study aims to design a wide-range high-accuracy direct current electron gun to meet the requirement of the Low Energy Electron Accelerator and Beam Line.MethodsBased on the original diode electron gun, a control grid was added to improve the control range and accuracy of the accelerator to form a triode electron gun. Then, the CST Particle Studio was employed to simulate the influence of some structural parameters of the triode electron gun on the extracted beam current, and obtained simulation result of electron gun was verified by Particle Beam GUN Simulation (PBGUNS) software. Finally, the experimental verification of design scheme was carried out on the electron gun experimental platform for optimizing the structure of electron gun. Several main structure parameters were changed to adjust beam current.ResultsThe experimental results show the optimized electron gun structure can extract 1 µA~50 mA high-quality beam when using cathode primary heating voltage as coarse adjustment and grid voltage as fine adjustment.ConclusionsThe influence law of gun structure parameters on beam current in the experiment is verify by simulation. The optimized gun structure meets the project requirements.https://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.050202&lang=zhgrid-controlled electron gunthermionic cathodedirect currentwide-rangehigh-accuracy |
| spellingShingle | ZHANG Haowei WANG Shengli LI Deming HUANG Jianming Design and verification of a wide range and high precision electron gun system He jishu grid-controlled electron gun thermionic cathode direct current wide-range high-accuracy |
| title | Design and verification of a wide range and high precision electron gun system |
| title_full | Design and verification of a wide range and high precision electron gun system |
| title_fullStr | Design and verification of a wide range and high precision electron gun system |
| title_full_unstemmed | Design and verification of a wide range and high precision electron gun system |
| title_short | Design and verification of a wide range and high precision electron gun system |
| title_sort | design and verification of a wide range and high precision electron gun system |
| topic | grid-controlled electron gun thermionic cathode direct current wide-range high-accuracy |
| url | https://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.050202&lang=zh |
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