X-ray tube that automatically limits electron flux by saturation

摘要

The problems are resolved of temperature holding of an anode by making a flat cathode (1) engraved in a device (8) for running focusing. It is shown that, depending on the shape of this device, the heat flow at the anode is limited by a saturation value lower than a thermal holding limit for this tube. In order to improve the thermal holding of the cathode, a hollow beam-shaped cathode is made. This ensures it a rigidity inherent in its beam-shape without however enclosing it with the disadvantages of too large a thermal inertia. …IMAGE…