MICRO X-RAY TUBE

摘要

The present invention relates to a micro X-ray tube. The micro X-ray tube comprises: a first electrode emitting an electron-beam; a gate electrode accelerating the electron-beam emitted from the first electrode; a second electrode including a target configured to collide with the accelerated beam; an insulation tube configured to electrically insulate between the first electrode and the gate electrode; and a filter tube provided between the second electrode and the gate electrode to filter X-rays. The filter tube may include alumina (Al2O3). The target may be inclined so that the X-rays generated by collision between the target and the electron-beam are directed toward the filter tube. According to the present invention, a simple structure of the X-ray tube may be achieved.