PROBLEM TO BE SOLVED: To provide an X-ray tube device can carry out switching on/off of X rays irradiated on an inspection object at high speed.SOLUTION: The X-ray tube device is provided with an electron gun 101 emitting electron beams, an electrode for deflection 102 for sending out the electron beams emitted from the electron gun 101 to switch in at least two directions by receiving a control signal, and a target 110 having a first reflection surface 111 irradiating X rays toward a predetermined irradiation field in receipt of electron beams of one direction and a second reflection surface 112 irradiating X rays toward a direction different from the predetermined irradiation field in receipt of electron beams of the other direction.COPYRIGHT: (C)2010,JPO&INPIT【課題】被検体に照射するX線のオン/オフを高速で行えるX線管球装置を提供する。【解決手段】電子ビームを出射する電子銃101と、制御信号を受けて電子銃101から出射された電子ビームを少なくとも2方向へ切り替えて送出させる偏向用電極102と、一方向の電子ビームを受けたときは所定の照射野に向けてX線を照射する第1反射面111と、他の方向の電子ビームを受けたときは所定の照射野と異なる方向に向けてX線を照射する第2反射面112と、を有するターゲット110と、を備える。【選択図】図2
