X-Ray Tube Cathode With Shaped Emitter

摘要

An emitter for a cathode of an X-ray tube is provided that includes a shaped emitting surface. The emitting surface is shaped in a suitable process in order to enable the emitting surface to focus electron beams emitted from the emitting surface on a focal spot on a target of less than 1.0 mm without the need for any additional focusing elements in the X-ray tube.

主权项

1. A cathode adapted for use with an X-ray tube, the cathode comprising:
a. a housing; and b. an emitter disposed within the housing, the emitter including a rear surface and an emitting surface generally opposite the rear surface, the emitting surface having at least one shaped section, wherein the emitter is formed in a process that does not utilize a die.