X-ray unit, imaging device, method for operating an x-ray unit, method for acquiring image data, and computer program product

An X-ray unit, comprising:

• an X-ray tube including
• a cathode,
• a rotating anode including an anode plate rotatably bearing-mounted about an anode axis, and
• a vacuum housing, wherein
• the cathode and the rotating anode are arranged within the vacuum housing;
• and
• a coil arranged outside the vacuum housing, wherein
• the coil and the X-ray tube are electrically isolated from one another,
• the coil is configured to generate a magnetic field that permeates an interspace between the cathode and the anode plate,
• the magnetic field is configured to deflect an electron beam originating from the cathode and impinging on the anode plate in a focal spot of the X-ray tube,
• the vacuum housing has a beam exit window on a side arranged radially relative to the anode axis, and
• the beam exit window is configured to allow passage of X-rays originating from the focal spot on the anode plate.