Patent ID: 9117621
Filing Date: 2015-08-25
Classification: H01J,H05G

Abstract:
1. A radiation generating tube comprising: a vacuum envelope having an insulating tube, a cathode bonded to one of openings of the insulating tube, and an anode bonded to other one of the openings of the insulating tube; an electron emission source connected to the cathode; and a target connected to the anode, wherein at least one of the cathode and the anode, and the insulating tube have a pair of bonded surfaces bonded via a conductive bonding material disposed between the pair of bonded surfaces facing each other, wherein the conductive bonding material is partly protruding from between the pair of bonded surfaces on the insulating tube side and the pair of bonded surfaces on the electrode side to an outer peripheral surface or an inner peripheral surface of the insulating tube, and wherein a concave portion is formed on the outer peripheral surface or on the inner peripheral surface of the insulating tube adjacent to one of the pair of bonded surfaces on the insulating tube side, and a distal end of the protruding conductive bonding material is accommodated in the interior of the concave portion.