File:Schottky-Emitter 01.jpg
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Summary
| Description |
Deutsch: Schottky Emitter bei zunehmender Vergrößerung. Der Wolfram-Einkristall mit geätzter Spitze ist auf einem Wolfram-Filament befestigt und mit einer Manschette aus Zirconiumdioxid versehen. Dieses sorgt bei der hohen Arbeitstemperatur von ca. 1800 K für einen leichteren Elektronenaustritt aus der Spitze. English: Schottky emitter at increasing magnification. The tungsten single crystal with an etched tip is attached to a tungsten filament and provided with a sleeve made of zirconium dioxide. At the high working temperature of approx. 1800 K, this ensures easier electron discharge from the tip.[1] Français : Émetteur dʼélectrons à effet Schottky, vu à des grossissements successivement plus grands. Le monocristal de tungstène à pointe gravée chimiquement est fixé sur un filament, en tungstène également, et pourvu dʼun manchon en dioxyde de zirconium, ce qui facilite lʼextraction des électrons de la pointe à la température de travail dʼenviron 1800 K. |
| Date | |
| Source | Own work |
| Author | ErwinMeier |
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- ↑ Bronsgeest, Merijntje:Physics of Schottky electron sources: Theory and optimum operation, ISBN 978-90-8570-434-8
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:30, 1 February 2021 | | 2,372 × 1,040 (249 KB) | wikimediacommons>ErwinMeier | erweitert |
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