roentgenroehre with veraenderlichem focal spot of the ladunganpasst.

摘要

The problems are resolved of temperature holding in both the anode (2) and the cathode (1) by making a flat cathode (7) 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 constant whatever the charge of the tube. …IMAGE…