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It has been widely reported that injection of gas into high voltage vacuum insulation systems is effective for the reduction of field emission; this technique is sometimes called gas conditioning1. While it is commonly thought that the responsible mechanism is ionic bombardment of microscopic field emitter structures, there still exists debate on this point. In this presentation, we will compare and...
The effect of stainless steel cathode surface morphology on field electronic emission in high vacuum (\(\sim 10^{-5}\) Pa) is studied. The surface rugosity is shown to affect the emission intensity; high-aspect ratio surface features lead to locally enhanced electric field, thereby increasing the field electronic emission. A breakdown in the vacuum, caused either by impact of charged dust particles...
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