Patent ID: 8848873

Claim:
An X-ray imaging system comprising: an X-ray tube configured to generate an X-ray emission, the X-ray tube including an anode, a cathode and a filament; an X-ray generator coupled with the X-ray tube and including a high voltage module and a low voltage module, the high voltage module being configured to supply a dosing voltage across the X-ray tube and the low voltage module being configured to supply a dosing current to the filament; a precharging module coupled with the X-ray generator and configured to supply a precharge voltage; and a triaxial cable electrically connecting the X-ray generator to the X-ray tube, the triaxial cable including a center conductor, an inner shield conductor surrounding the center conductor and an outer shield conductor surrounding the center conductor and the inner shield conductor, wherein the outer shield conductor carries a ground voltage, the inner shield conductor carries the precharge voltage and the center conductor carries the dosing voltage, and wherein the precharging module supplies the precharge voltage to the inner shield conductor at a first time, the X-ray generator supplies the dosing voltage to the center conductor at a second time, and the second time is different than the first time.