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 both (i) a high voltage module and (ii) 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 having a first magnitude being equal or approximately equal to the magnitude of the dosing voltage; and a triaxial cable (40A, 40B) 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 center conductor carries the dosing voltage, and the inner shield conductor carries the precharge voltage, said precharge voltage being operable to reduce capacitive effects between at least the center conductor and the outer shield conductor and thereby decrease a charging delay and a rise time of the dosing voltage; wherein the precharging module supplies the precharge voltage to the inner shield conductor at a first time, the X-ray generator high voltage module supplies the dosing voltage to the center conductor at a second time, wherein the difference between the first time and second time is a precharging delay, and the second time is later than the first time. 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 both (i) a high voltage module and (ii) 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 having a first magnitude being equal or approximately equal to the magnitude of the dosing voltage; and a triaxial cable (40A, 40B) 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 center conductor carries the dosing voltage, and the inner shield conductor carries the precharge voltage, said precharge voltage being operable to reduce capacitive effects between at least the center conductor and the outer shield conductor and thereby decrease a charging delay and a rise time of the dosing voltage; wherein the precharging module supplies the precharge voltage to the inner shield conductor at a first time, the X-ray generator high voltage module supplies the dosing voltage to the center conductor at a second time, wherein the difference between the first time and second time is a precharging delay, and the second time is later than the first time. the precharging module supplies the precharge voltage to the inner shield conductor at a first time, the X-ray generator high voltage module supplies the dosing voltage to the center conductor at a second time, wherein the difference between the first time and second time is a precharging delay, and the second time is later than the first time.