Results of explosively-driven isentropic compression experiments (HEPP-ICE)

Abstract

Oral Session 7A: Fast Z-Pinches -111, Dense Plasma Focus; High Energy Density Using the Los Alamos high explosive pulsed power (HEPP) system, isentropic equation of state (EOS) data may be obtained for a wide range ofmatenals. Current pulses with risetimes of-SO0 ns and curHydrodynamics and Equation of State -rent densities exceeding 400 MNm, create continuous magnetic load-ing of samples at megabar pressures. We will summarize the technique and the problems that had to be overcome to perform the HEPP-ICE experiments at these pressures. We will then present our EOS results obtained with the conventional Lagrangian analysis and the Hayes' "Backwars' integration method', and compare the data with the published principal isentrope of OFHC copper.