As before the triggered vacuum gaps (TVG) are used in high-speed photography and in devices for illumination of high-speed processes by pulses of optical and X-rays. So the

incandescent circuits, big current, wide range of anode work voltages, high temperature andradiation durability. For example, the TVGs excel the high-pressure gas-filled gaps at theseparameters.However, the main disadvantages of the TVG are high voltage of charge initialization(12... 15 kV) and unpredictability of its change during the lifetime. The voltage may increaseor decrease down to tens of hundreds volts. The last phenomenon generally causes a short