DUAL TUBE SUPPORT FOR ELECTRON EMITTER

摘要

An x-ray tube (10, 40, 50) including dual, electrically-conductive emitter tubes (14i, 14o) to support and provide electrical power to an electron emitter (18). A method of evacuating and sealing the x-ray tube by drawing a vacuum on the x-ray tube through an inner tube of dual emitter tubes, then pinching the inner tube to seal off the enclosure and to maintain a vacuum therein.