| 摘要 |
The present invention provides a radiation generating tube (1) having withstand voltage characteristics in which factors that cause electric field concentration, which may occur in a bonded portion (23) of a cathode (19) or an anode (20) and an insulating tubular member (21) when an electrically conductive bonding material (22) is applied thereto, is suppressed, as well as a radiation generating apparatus (13). The present invention relates to a radiation generating tube (1). The radiation generating tube includes an envelope (6) including an insulating tubular member (21) having at least two openings, a cathode (19) connected to one of the openings of the tubular member, and an anode (20) connected to the other of the openings of the tubular member; an electron emitting source (3) connected to the cathode; and a target (8) connected to the anode. The internal space (12) of the envelope is under negative pressure relative to the external space. At least one of the cathode and the anode and the tubular member are bonded at a bonded portion (23) with an electrically conductive bonding material (22); and the bonded portion bonded with the bonding material is coated with a dielectric layer (24). |
