Summary form only given, as follows. Davis et al. (1997) Douglas et al. (1997) and Hammer et al. (1997) have shown the advantages of nested configurations for high current Z-pinches. Experiments have begun on the 20-MA Z accelerator to study these configurations using two nested wire arrays. For the first set of experiments, the outer array was chosen to be a 40 mm diameter with 240 wires which ha...Show More