X-ray source for a mobile x-ray diagnostic unit with a c-arm

A mobile X-ray diagnostic unit comprising:

• a movable chassis;
• and
• a C-arm having a frame with a hollow portion, the frame mounted on the movable chassis so that the C-arm can be circumferentially adjusted, the C-arm comprising an X-ray source that comprises:
• a generator vessel configured to be mounted to the hollow portion of the frame of the C-arm, the generator vessel comprising a first subregion that comprises a high-voltage generator and a second subregion that comprises an X-ray tube, wherein at least one of the first subregion and the second subregion is at least partially inside the hollow portion of the frame of the C-arm.