ROTATION ANODE X-RAY TUBE UNIT AND ROTATION ANODE X-RAY TUBE ASSEMBLY

摘要

A rotation anode X-ray tube unit includes a rotation anode X-ray tube, a flow-passage formation member, and a X-ray shielding section. The X-ray shielding section includes an X-ray shield and a frame-shaped X-ray shielding member.

主权项

1. A rotation anode X-ray tube unit comprising:
a rotation anode X-ray tube including a cathode which emits electrons, an anode target which is rotatably provided to emit X-rays, and a vacuum envelope which accommodates the cathode and the anode target; a flow-passage formation member including a shell which surrounds the vacuum envelope in a direction perpendicular to an axis of the anode target, the flow-passage formation member forming a flow passage in which a cooling fluid flows and which is located between the flow-passage formation member and the vacuum envelope; and X-ray shielding means for preventing leakage of the X-rays, wherein the X-ray shielding means includes: an X-ray shield located opposite to the rotation anode X-ray tube with respect to the shell, and including a through hole which permits X-rays to be transmitted therethrough; and a frame-shaped X-ray shielding member attached to the X-ray shield, surrounding the through hole of the X-ray shield, and projecting opposite to the shell with respect to the X-ray shield.