CATHODE ASSEMBLY FOR USE IN X-RAY GENERATION

A cathode assembly design is provided that includes two flat emitters, a longer emitter filament and a shorter emitter filament. In one implementation the focal spot sizes produced by the long and short emitters overlap over a range. Thus, one emitter filament may be suitable for generating small an...

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Bibliographische Detailangaben
Hauptverfasser: Zhang Xi, Price John Scott
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A cathode assembly design is provided that includes two flat emitters, a longer emitter filament and a shorter emitter filament. In one implementation the focal spot sizes produced by the long and short emitters overlap over a range. Thus, one emitter filament may be suitable for generating small and concentrated focal spot sizes while the other emitter filament is suitable for generating small and large focal spots sizes.