Electric motor for dual ended x-ray tube

An x-ray tube system, comprising:

• a housing containing cooling oil;
• a vacuum envelope disposed within the housing and including a solid envelope wall, wherein the cooling oil is disposed between the housing and the solid envelope wall;
• an anode and a cathode arranged in a vacuum environment and surrounded by the solid envelope wall;
• a rotor connected to the anode and arranged on bearings within the vacuum environment;
• and
• a stator assembly positioned within the cooling oil and surrounding the rotor to define an oil-filled annular gap, the stator assembly comprising:
• a stator core;
• a plurality of stator teeth extending from the stator core and spaced apart from each other by intervening stator slots;
• and
• stator windings disposed within the stator slots, wherein each respective one of the stator teeth includes a respective tooth tip set a predetermined distance apart from the stator windings to form an intra-slot cooling channel in fluid communication with the oil-filled annular gap, such that the stator teeth inclusive of the respective tooth tip are fully immersed in the cooling oil.