hello every body. As an educational project i want to design and construct a repetitive charge and discharge pulsed power supply for a X-ray source wich works on the basis of discharging a 10-15 kv - (1.5-2 joules) capacitor energy in to a gas discharging chamber . I'm going to use a voltage multiplier with an input ferrite 10/1000 transformer and a 15 stage voltage multiplier . -The frequency of gas discharge may be restricted to max =20Hz. -As an input to ferrite transformer, I'm going to use a DC-AC switching mode inverter with F=15Kz .with an input 12VDC . the questions are: 1-what is your whole opinion about the method? 2-Is there any rule for determining the capacity of the stage capacitors? 3-While I simulate a sample circuit model in pspice with 10 stage (each having 1000pf capacitor) with a 1kv-10kz sin voltage source , it seems that the output is saturated in about 300v (which seems to be wrong).