Method and device for operating an X-ray tube

摘要

The invention relates to a method and a device for operating an X-ray tube in the pulsed mode, in which an electron current emerging from the cathode arrives at the anode at a specific point on a target and at the same time generates X-ray radiation which emerges through the outlet window of the X-ray tube. The object of the invention is to operate an X-ray tube in the pulsed mode such that high intensity X-ray radiation pulses are achieved with very steep rising and falling edges. The invention achieves the object in that full voltage is applied to the anode and cathode throughout the operating time and a constant electron current is thus generated, and in that, during the pulse pauses, the electron current generated by the cathode is deflected from that part of the target surface from which the X-ray radiation emerges through the outlet window of the X-ray tube during the pulse duration.