Tungsten Thermionic Emission as a Gauge for Low Pressures of Cesium Vapor

作者: João Shida , Fangjian Wu , Eric Spieglan , Mesut Çalışkan

DOI: 10.3390/INSTRUMENTS4040034

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摘要: Heated metal filaments under electric fields and low pressures of alkali gas eject electrons by thermionic emission as a function the pressure temperature filament. To explore this process in program to develop large-area photocathodes, we have designed built gauge following studies Taylor Langmuir. We present proof-of-principle measurements tungsten filament cesium vapor. describe second-generation design that corrects flaws first gauge.

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