Calculations of capillary Z-pinch at 100 MA scale currents

Summary form only given, as follows. Different capillary Z-pinch configurations from hundreds of microns to several cm in diameter have been previously experimentally investigated during last two decades for the purposes of suppression of current instabilities. They demonstrated quenching of accretion and m=1 instabilities as well as high heating rates and temperatures substantial to generate 1 keV-range X-rays. Very stable and homogeneous heating and compression in fast capillary discharges were the key factors which allowed achievement of X-ray laser generation. We report numerical investigations of different capillary Z-pinch configurations aimed at next generation pulsed power driver currents. Several cases of interest have been examined, including ´classical´ gas-filled capillary pinch, staged pinch and some others.