PROBLEM TO BE SOLVED: To provide an X-ray shutter capable of improving switching speed between exposure of a first X-ray and exposure of a second X-ray, and an X-ray tube device including the X-ray shutter.SOLUTION: An X-ray shutter includes: an X-ray iris member 4 and a first X-ray shield plate 5. The X-ray iris member 4 has: a first X-ray transmission section 4a through which a first X-ray is transmitted and a second X-ray transmission section 4b through which a second X-ray is transmitted. The first X-ray shield plate 5: is disposed facing the first X-ray transmission section 4a and the second X-ray transmission section 4b is formed of an X-ray shield material has an X-ray transmission window 5a and is repeatedly switched to a first state, second state, third state, and fourth state by being rotated.COPYRIGHT: (C)2015,JPO&INPIT【課題】第1X線の曝射と第2X線の曝射との切替え速度の向上を図ることのできるX線シャッタ及びX線シャッタを備えたX線管装置を提供する。【解決手段】X線シャッタは、X線絞り部材4と、第1X線遮蔽板5とを備える。X線絞り部材4は、第1X線を透過させる第1X線透過部4aと、第2X線を透過させる第2X線透過部4bとを有する。第1X線遮蔽板5は、第1X線透過部4a及び第2X線透過部4bに対向配置され、X線遮蔽材で形成され、X線透過窓5aを有し、回転することにより、第1状態、第2状態、第3状態及び第4状態に繰り返し切替えられる。【選択図】図1
