ROTATING-ANODE X-RAY TUBE Russian patent published in 1997 - IPC

FIELD: medical engineering; general-purpose high-power X-ray diagnostic tubes. SUBSTANCE: X-ray tube has vacuum chamber accommodating cathode and rotating anode supported by cylindrical sliding mount with working clearance lubricated with mixture of gallium-base low-melting metals; annular groove is made on cylindrical working surface communicating through ducts with lubricant space beyond working clearance; shaped spiral grooves are made on both sides of annular groove each forming two lines of opposing noncommunicating grooves; one line of spiral grooves has outlet to annular groove space, other line has outlet to end of mount; spiral grooves are made on end surfaces of cylinder and communicate with central axial hole. EFFECT: enlarged functional capabilities. 2 cl, 2 dwg