Patent ID: 9142381
Filing Date: 2015-09-22
Classification: H01J,H05G

Abstract:
1. An X-ray tube comprising: a cathode; an anode; wherein the cathode comprises a first electron emitter adapted for emitting a first electron beam for generating a first focal spot on the anode and a second electron emitter adapted for emitting a second electron beam for generating a second focal spot on the anode; wherein each electron emitter comprises an associated switchable grid for blocking the respective emitted electron beam, said emitting of the first and second electron emitters each being in a y-direction towards the anode, said anode having an X-ray emitting surface for emitting X-rays substantially in a z-direction perpendicular to the y-direction upon incidence of a beam from among the electron beams, the X-ray emitting surface being slanted at an angle with respect to the y-direction, the first and second electron emitters being disposed displaced with respect to each other in the z-direction.