GEPI : An Ice Generator for Dynamic Material Characterisation and Hypervelocity Impact

Abstract

GEPI is a pulsed power generator developed by ITHPP for Centre d’Etudes de Gramat (CEG), devoted to Isentropic Compression Experiments in the 1 GPa to 100 GPa range, and to non shocked high velocity flyer plates in the 0.1 km/s to 10 km/s range. The main idea is to generate a high magnetic pressure in a strip line where the samples are located. The whole design is based on low inductance technologies. Depending on the load, the current reaches between 3 and 4 MA in 600 ns. The entire design has been done in a cost effective way and in order to achieve an easy‐to‐use capability . A description of the generator is shown and typical results of the studies led by CEG are presented. The matters of concern are equations of state, phase transitions and impact of high velocity flyer plates.