An X-ray Tube Having a Collimator Structure of Adjusting a Focus

摘要

The present invention relates to an X-ray tube having a focus-adjustment collimator structure and, more specifically, relates to an X-ray tube having a focus-adjustment collimator structure in which a collimator for focus adjustment is placed in front of a positive rod emitting X-rays. The X-ray tube includes: a tube body (111) generating X-rays; a positive rod (113) placed in front of the tube body (111) to emit X-rays to a set focus spot; and a focus control unit (15) including a hole penetrated by the X-rays emitted from the positive rod (113).