Electron-beam device
In order to improve the performance of an electron-beam device, the ends of the cathode housing (112) are provided with dome-shaped structures (118).
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | In order to improve the performance of an electron-beam device, the ends of the cathode housing (112) are provided with dome-shaped structures (118). |
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