Patent ID: 9008276
Filing Date: 2015-04-14
Classification: H01J

Abstract:
1. A X-ray tube comprising: a substrate including radiopaque first and second substrates made of a metal; a rectangular or slit shaped opening arranged in each of said first and second substrates having a framework; an X-ray transmissive window arranged on the substrate, said X-ray transmissive window being sandwiched between the first and second substrates and closing the opening; a box shaped case attached to the substrate, the inside of said case being in high-vacuum state; an X-ray target arranged on the opening of the substrate in the inside of the case and adhering to the X-ray transmissive window, and an electron source arranged in the inside of the case, said electron source having a plurality of control electrodes including a liner cathode extending along the opening of the substrate and an opening extending along the longitudinal direction of the cathode for deriving electrons emitted from the cathode, and supplying the electrons to the X-ray target.