Accession Number:

ADA609657

Title:

High Accuracy Isentropic Compression Studies with High Explosive Pulsed Power

Descriptive Note:

Conference paper

Corporate Author:

LOS ALAMOS NATIONAL LAB NM

Personal Author(s):

Report Date:

2007-06-01

Pagination or Media Count:

5.0

Abstract:

An study of the one-dimensional isentropic compression experiment ICE, performed with High Explosive Pulsed Power HEPP, has demonstrated that accurate, high stress, isentropic Equations of State EOS data may be obtained with this technique. The physics and accuracy of electromagnetic loading in the ICE technique is presented. It is shown that the HEPP-ICE load configuration is capable of producing magnetic stresses that are uniform to 1 part in 1000 over the central 87 of the sample faces, and that HEPP-ICE provides exact matching of the stresses between opposing samples. This magnetic uniformity, the exact matching, and the large sample samples possible with HEPP-ICE, are necessary for the highest accuracy isentropic EOS data. Isentropic EOS data have been obtained with a prototype HEPP-ICE system, and the results for tungsten and copper demonstrate the inaccuracy of the technique, which may be as low as 0.2 in stress. It is shown that a large-scale HEPP-ICE system is capable of producing shock-free loading up to 2.2 TPa in 10-mm thick tungsten samples.

Subject Categories:

  • Electrical and Electronic Equipment
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE