A rotating anode x-ray source is disclosed having means by which to efficiently cool the electron beam target surface thereof. Energy is removed from the rotating anode target surface by a technique which includes liquid to vapor phase cooling.

A rotating anode for an x-ray tube has an anode body composed of composite fiber material, mounted in a bearing system, the anode body having a target surface with a focal ring and including fibers with particularly high heat conductivity in the longitudinal direction. An axis-proximal cooling system is associated with the anode body. The majority of all fibers with high heat conductivity in the longitudinal direction terminate bluntly both at the focal ring and at the cooling system, such that their abutting faces respectively are in direct, heat-conducting contact both with the focal ring and with the cooling system.

Aircraft probe or mast including heat pipe for indirectly heating the probe or mast thereby providing deicing. Heat for the heat pipe configured probe or mast is supplied by remote location of a heat source. The heat source may include a replacement plug in electric heater or a remote heat source such as an engine airbleed duct.

An x-ray tube for emitting x-rays which includes an anode and a cathode is disclosed herein. The x-ray tube includes a housing, an anode disposed in the housing and including a target, a cathode disposed in the housing at a distance from the anode, and a heat pipe thermally coupled to the cathode and extending away from the electron emitter. The cathode includes an electron emitter which is configured to emit electrons which hit the target of the anode and produce x-rays. The heat pipe provides transfer of thermal energy away from the electron emitter and into a heat sink.

An x-ray tube for emitting x-rays which includes an anode assembly and a cathode assembly is disclosed herein. The x-ray tube includes a vacuum vessel, an anode assembly disposed in the vacuum vessel and including a target, a cathode assembly disposed in the vacuum vessel at a distance from the anode assembly, and a heat pipe is supported relative to the anode assembly. The cathode assembly is configured to emit electrons which hit the target of the anode assembly and produce x-rays. The heat pipe transfers thermal energy away from the target through the vacuum vessel. The heat pipe provides for greater thermal transfer down the bearing shaft of the anode assembly, thereby providing greater cooling of the anode assembly.