FIELD EMISSION ELECTRON EMISSION DEVICE
To solve a problem in which a filament used in an X-ray tube or the like is heated to emit thermoelectrons in an electron generator using the filament, but this has the disadvantage that the power efficiency is very poor and the life is short, like an incandescent lamp.SOLUTION: As an alternative to...
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Format: | Patent |
Sprache: | eng ; jpn |
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