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US5001385A Electron beam apparatus with adjusting mechanism for a thermally emitting cathod tip 失效
具有用于发热阴极尖端的调节机构的电子束装置

Electron beam apparatus with adjusting mechanism for a thermally
emitting cathod tip
摘要:
In order to avoid undesired variations in the emission current intensity of a clamping device for a thermally emitting cathode tip constructed from pyrolytice graphite, a resilient coupling compensating the thermal stresses n the graphite is provided in an electron beam apparatus.
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