| 摘要 |
Heat dissipation of a target is enhanced in a transmissive X-ray generating apparatus where an anode member constitutes a part of a container. An anode member configured to hold a target is divided into an outer anode member, which is configured to hold the target and is connected to a container, and an inner anode member, which is joined to an insulating tube and is closer to an electron emitting portion than the outer anode member is. The outer circumferential surface of the inner anode member is joined to the outer anode member via a joining member. Heat generated by the electron emitting portion is dissipated mainly from the inner anode member via the insulating tube, or directly, to an insulating liquid. |
| 主权项 |
1. An X-ray generating apparatus, comprising:
an X-ray generating tube comprising:
an anode comprising a transmissive target configured to generate an X-ray when irradiated with an electron beam, and an anode member configured to hold the transmissive target;a cathode comprising an electron emitting source configured to irradiate the transmissive target with an electron beam, and a cathode member connected to the electron emitting source; andan insulating tube having a pair of ends in a tube axis direction, one end of which is connected to the anode member and the other end of which is connected to the cathode member; and a conductive container, which is connected to the anode member and is configured to house the X-ray generating tube, wherein the anode member comprises an outer anode member, which is configured to hold the transmissive target and is electrically connected to the conductive container, and an inner anode member, which is interposed between the outer anode member and the electron emitting source in the tube axial direction of the insulating tube and is joined to the insulating tube, and wherein the inner anode member is connected to the outer anode member outside the insulating tube in a tube radial direction, in a manner that allows for heat transfer. |
