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

Author

Tasker, D. ; Abeyta, F. ; Arellano, J. ; Dennis, D. ; Goforth, J. ; Herrera, D. ; king, J. ; McGuire, J. ; Oona, H. ; Rigg, P. ; Sena, F. ; Tabaka, L. ; Torres, D.

Author_Institution

Los Alamos Nat. Lab., California Univ., xx, USA

fYear

2004

fDate

1-1 July 2004

Firstpage

406

Abstract

Summary form only given. Using the Los Alamos high explosive pulsed power (HEPP) system, isentropic equation of state (EOS) data may be obtained for a wide range of materials. Current pulses with risetimes of /spl sim/500 ns and current densities exceeding 400 MA/m, create continuous magnetic loading 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\´ "Backward" integration method, and compare the data with the published principal isentrope of OFHC copper.

Keywords

compressive testing; current density; equations of state; high-pressure effects; pulsed power technology; shock wave effects; 1 Mbar; 500 ns; Hayes backward integration method; Lagrangian analysis; Los Alamos high explosive pulsed power system; current density; current pulse; isentropic compression; isentropic equation of state; magnetic loading; Copper; Earth Observing System; Equations; Explosives; Hydrodynamics; Ice; Laboratories; Lagrangian functions; Magnetic analysis; Plasma density;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2004. ICOPS 2004. IEEE Conference Record - Abstracts. The 31st IEEE International Conference on

Conference_Location

Baltimore, MD, USA

ISSN

0730-9244

Print_ISBN

0-7803-8334-6

Type

conf

DOI

10.1109/PLASMA.2004.1340182

Filename

1340182