Theoretical analysis and experimental study of two-cascade explosive-driven magnetic-field compression

The calculation and experimental study of two-cascade explosive-driven magnetic-field compression (EMC) pulsed power supplies is carried out. It is shown that: (1) under certain conditions, few-cascade EMCs can multiply current and electromagnetic energy; (2) with the worse figure of merit (P=0.54), it is possible to only multiply current, but not electromagnetic energy; (3) the "short and thick" devices have greater current and electromagnetic energy gain coefficient than "long and thin" ones-one of the important reasons is because of the better figure of merit; and (4) experimental data are consistent with calculation results.