Methods for estimating equivalent stray capacitance to ground of Marx generator

This paper introdues two estimating methods of equivalent stray capacitance to ground of Marx generator, i.e., step accumulation method and energy conservation method. In step accumulation method, every step stray capacitance is approximately calculated, then accumulated as the equivalent stray capacitance of Marx generator. Energy conservation method derives the equivalent stray capacitance, based on the assumption that the energy stored in each step capacitance is the same as that in equivalent stray capacitance under the voltage of output point of Marx generator. Comparison of equivalent stray capacitances calculated by the two methods and the experimental result was made for the Marx generator of Flash-Ⅱ accelerator. The theoretically calculated results are both 114 pF, and the experi