ROTATING ANODE TYPE X-RAY TUBE AND ROTATING ANODE TYPE X-RAY TUBE DEVICE USING THE SAME AND ITS CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a rotating anode type X-ray tube, a rotating anode type X-ray tube device, and its control method.;SOLUTION: This is a rotating anode type X-ray tube that comprises an anode target 11 arranged in a vacuum container 10, a rotating part 12 that rotates in one body with this anode target 11, a fixed part that is engaged with this rotating part 12 and is provided with dynamic pressure slide bearings Ra, Rb, Sa, Sb at a part of the engaging part, and a rotor part 14 that generates rotating force for rotating the anode target 11 by a rotating magnetic field given from outside. A duct 19 which stores a liquid metal lubricant that is given rotating magnetic field from outside, and of which one end 19a is open at the engaging part positioned on the outer side than the prescribed section of the engaging part that crosses the tube axis m at right angles, and the other end 19b is open at the engaging part in the region that is different from the one end 19a, is provided.;COPYRIGHT: (C)2003,JPO