Target assembly for X-ray emission device and X-ray emission device

摘要

A target assembly for an x-ray emission apparatus, the apparatus assembly including: a vacuum chamber having at least one conductive wall; an insulating element projecting through the conductive wall; a conductive high voltage element extending along the insulating element from outside the chamber to an end portion of the insulating element furthest from the conductive wall; an x-ray-generating target arranged at the end portion of the insulating element and electrically connected to the high voltage element; and a suppressive electrode arranged at the end portion of the insulating element and configured to suppress acceleration toward the outer surface of the insulating element of electrons which are emitted from a junction between the outer surface of the insulating element and an inner surface of the conductive wall.