I have been working on a circuit (similar to car ionizer circuit) for a pulsed plasma thruster, which is able to charged up a capacitor to voltage as high as 1.8kV. I have a diode which is able to block reverse voltage up to 2kV interfaced between the charging circuit and the discharged capacitor. This capacitor is then connected to two electrodes (air gap) that discharge when the breakdown voltage is reached. The problem is, whenever the capacitor discharges, a random component in my circuit will be spoilt. What must i do to overcome this problem?