One embodiment of the present disclosure is directed to a mobile X-ray unit. The mobile X-ray unit may include a base for accommodating a control unit, a power supply, and a cooler. The mobile X-ray unit further including an articulated arm associated with the base and coupled to an X-ray applicator. The X-ray applicator including an X-ray tube having an anode for generating an acceleration field and a target element for generating an X-ray beam, wherein a longitudinal axis of the anode is substantially parallel to a longitudinal axis of the X-ray tube.
