Thermal effects and beam parameter variations in electron guns
The paper describes results of research on influence of electrode temperatures and manufacturing tolerance of an electron gun on parameters of an output beam. The Pierce's gun that provides an electron beam with a current of 1.2 A and energy of 25 keV for the S-band technological linac is consi...
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| Veröffentlicht in: | Вопросы атомной науки и техники |
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| Datum: | 2001 |
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| Format: | Artikel |
| Sprache: | English |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2001
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/79021 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Thermal effects and beam parameter variations in electron guns / I.V. Khodak, V.A. Kushnir, V.V. Mitrochenko, D.L. Stepin, V.F. Zhiglo // Вопросы атомной науки и техники. — 2001. — № 5. — С. 134-136. — Бібліогр.: 5 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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Khodak, I.V. Kushnir, V.A. Mitrochenko, V.V. Stepin, D.L. Zhiglo, V.F. 2015-03-24T17:46:33Z 2015-03-24T17:46:33Z 2001 Thermal effects and beam parameter variations in electron guns / I.V. Khodak, V.A. Kushnir, V.V. Mitrochenko, D.L. Stepin, V.F. Zhiglo // Вопросы атомной науки и техники. — 2001. — № 5. — С. 134-136. — Бібліогр.: 5 назв. — англ. 1562-6016 PACS numbers: 29.25.Bx, 41.85.Ar https://nasplib.isofts.kiev.ua/handle/123456789/79021 The paper describes results of research on influence of electrode temperatures and manufacturing tolerance of an electron gun on parameters of an output beam. The Pierce's gun that provides an electron beam with a current of 1.2 A and energy of 25 keV for the S-band technological linac is considered as an example. Numerically calculated parameters of the beam and the temperature distribution in electrodes are presented. It is shown that the acceptable error in a position of electrodes is ±0.1 mm. This value does not fall outside the limit of thermal deformations and technical abilities for manufacturing guns in a laboratory. The scaling to the area of injectors for compact X-band linacs leads to the tolerance of ±0.01 mm that requires introducing fixing and adjustment elements reducing a thermal insulation of the cathode. However, the calculation and experiment showed that such reducing is negligible even for the modern low temperature thermionic cathodes due to a dominant role of the radiation in the heat transfer. This circumstance permits to create the precision intensive compact thermionic electron sources with replacing cathode for the compact linacs. This work was partially supported by STCU project # 2185. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Thermal effects and beam parameter variations in electron guns Температурные эффекты и изменения параметров пучка в электронных пушках Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Thermal effects and beam parameter variations in electron guns |
| spellingShingle |
Thermal effects and beam parameter variations in electron guns Khodak, I.V. Kushnir, V.A. Mitrochenko, V.V. Stepin, D.L. Zhiglo, V.F. |
| title_short |
Thermal effects and beam parameter variations in electron guns |
| title_full |
Thermal effects and beam parameter variations in electron guns |
| title_fullStr |
Thermal effects and beam parameter variations in electron guns |
| title_full_unstemmed |
Thermal effects and beam parameter variations in electron guns |
| title_sort |
thermal effects and beam parameter variations in electron guns |
| author |
Khodak, I.V. Kushnir, V.A. Mitrochenko, V.V. Stepin, D.L. Zhiglo, V.F. |
| author_facet |
Khodak, I.V. Kushnir, V.A. Mitrochenko, V.V. Stepin, D.L. Zhiglo, V.F. |
| publishDate |
2001 |
| language |
English |
| container_title |
Вопросы атомной науки и техники |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| format |
Article |
| title_alt |
Температурные эффекты и изменения параметров пучка в электронных пушках |
| description |
The paper describes results of research on influence of electrode temperatures and manufacturing tolerance of an electron gun on parameters of an output beam. The Pierce's gun that provides an electron beam with a current of 1.2 A and energy of 25 keV for the S-band technological linac is considered as an example. Numerically calculated parameters of the beam and the temperature distribution in electrodes are presented. It is shown that the acceptable error in a position of electrodes is ±0.1 mm. This value does not fall outside the limit of thermal deformations and technical abilities for manufacturing guns in a laboratory. The scaling to the area of injectors for compact X-band linacs leads to the tolerance of ±0.01 mm that requires introducing fixing and adjustment elements reducing a thermal insulation of the cathode. However, the calculation and experiment showed that such reducing is negligible even for the modern low temperature thermionic cathodes due to a dominant role of the radiation in the heat transfer. This circumstance permits to create the precision intensive compact thermionic electron sources with replacing cathode for the compact linacs.
|
| issn |
1562-6016 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/79021 |
| citation_txt |
Thermal effects and beam parameter variations in electron guns / I.V. Khodak, V.A. Kushnir, V.V. Mitrochenko, D.L. Stepin, V.F. Zhiglo // Вопросы атомной науки и техники. — 2001. — № 5. — С. 134-136. — Бібліогр.: 5 назв. — англ. |
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2025-12-02T06:36:51Z |
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