Radiation generating apparatus and radiation imaging apparatus

摘要

A radiation generating apparatus includes: an envelope 1 having a first window 2 through which a radiation is transmitted; and a radiation tube 10 being held within the envelope 1, and having a second window 15 which is arranged in opposition to the first window 2, and through which the radiation is transmitted; and a radiation shielding member 16 thermally connected to the second window 15, having a radiation transmitting hole 21 arranged in communication with the second window 15, and having a protruding portion protruding from the second window 15 toward the first window 2. A thermally conductive member 17 having a higher thermal conductivity rather than that of the radiation shielding member 16 is connected to the protruding portion of the radiation shielding member 16. The radiation generating apparatus can shield an unnecessary radiation and cool a target with a simple structure and is entirely reduced in weight.

主权项

1. A radiation generating apparatus comprising:
an envelope having a first window through which radiation is transmitted; a radiation tube being held within the envelope, and having a target layer, a target supporting window supporting the target layer, and a radiation shielding member having a protruding portion protruding from the target supporting window toward the first window; a thermally conductive member having a higher thermal conductivity than that of the radiation shielding member and connected to the protruding portion of the radiation shielding member; and an insulating fluid filling a space between the envelope and the radiation tube, wherein the target supporting window is arranged in opposition to the first window, and wherein the radiation is transmitted through the target supporting window, and wherein the target supporting window is secured to the thermally conductive member, and wherein the thermally conductive member is connected to the protruding portion of the radiation shielding member at a front side and a rear side with respect to the second window in a tube axis direction.