ROTATING ANODE X-RAY TUBE

摘要

A rotating anode (5) of a rotating anode X-ray tube according to the present invention comprises: an anode target (50) formed on a first surface; a plurality of slits (8) cut around the rotation center axis (11); a ring-shaped groove (52) provided along the inner circumference of said anode target on said first surface; and a plurality of opening holes (7) extending from said first surface toward a second surface of said rotating anode. Said opening holes are respectively in communication with said slits and connected to said ring-shaped groove. A rotating anode X-ray tube capable of stably rotating with reduced thermal stress while also generating high X-ray output is thus obtained.