X-RAY SOURCE AND X-RAY IMAGING METHOD

摘要

An X-ray imaging method including the following steps is provided. An X-ray source is provided, wherein the X-ray source includes a housing, a cathode, and an anode target. The housing has an end window. The cathode is disposed in the housing, and the anode target is disposed beside the end window. The cathode is caused to provide an electron beam. A portion of the electron beam hits at least a part of areas of the anode target to generate an X-ray and the X-ray is emitted out of the housing through the end window. The X-ray is caused to irradiate an object to generate X-ray image information. An image detector is used to receive the X-ray image information. Besides, an X-ray source is also provided.

主权项

1. An X-ray source, adapted to providing an X-ray, the X-ray source comprising:
a housing comprising an end window, wherein the X-ray is emitted out of the housing through the end window; an anode target disposed beside the end window and adapted to rotating around an axis; a cathode disposed in the housing and adapted to providing an electron beam, wherein a portion of the electron beam hits the rotating anode target to generate the X-ray that passes through the end window; and a shielding unit comprising an opening and disposed on a traveling path of the electron beam and between the cathode and the anode target for shielding another portion of the electron beam, wherein the portion of the electron beam that hits the anode target passes through the shielding unit through the opening of the shielding unit.