Patent ID: 8879690

Claim:
An X-ray generator for generating X-rays from an X-ray focal point, said X-ray focal point being a region in which electrons emitted from a cathode impinge upon an anticathode; said X-ray generator comprising: a Wehnelt electrode for surrounding said cathode; an attachment part formed integrally with said Wehnelt electrode; a pedestal to which said attachment part is attached; and a casing for housing said pedestal and said anticathode; wherein the width of an anticathode housing space in which said anticathode is housed by said casing is less than the width of a pedestal housing space in which said pedestal is housed by said casing; and said Wehnelt electrode extends into a space in which said anticathode is housed by said casing, in a state in which said attachment part is attached to said pedestal.