skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Enhancing cylindrical compression by reducing plasma ablation in pulsed-power drivers

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5086305· OSTI ID:1614458

Warm dense matter, which can be found in planetary cores, is too dense to be described by plasma theory and too hot to be considered condensed matter. With no theory describing perfectly how such large quantum systems evolve at macroscopic scales, modeling planetary evolution is simply out of reach. While recent experiments using high power lasers and heavy ion beams have produced warm dense matter samples, they do not confine matter long enough to allow for bulk material properties to take hold, precluding the validation of any theories beyond electron-ion equilibration time. To this end, pulsed-power drivers are required. This approach allows experimentalists to probe macroscopic states of matter where bulk material properties are at equilibrium. High resolution numerical simulations show that a mega-ampere pulsed-power driver can generate macroscopic samples of warm dense matter, using direct magnetic compression, without any pusher. A thin coating, deposited onto the material just before the experiment, softens the density gradients responsible for plasma ablation. Starved of plasma outside the conductors, electrical currents are forced to flow along material surfaces, resulting in a very stable magnetic topology that yields homogeneous compression above 1 Mbar. Another key aspect is as follows: mega-ampere pulsed power systems are compact enough to be located next to existing high brilliance x-ray sources, which can probe best the properties of matter under extreme pressure.

Research Organization:
Univ. of Rochester, NY (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
NA0001944; SC0016252
OSTI ID:
1614458
Alternate ID(s):
OSTI ID: 1507462
Journal Information:
Physics of Plasmas, Vol. 26, Issue 4; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (33)

A compact strip-line pulsed power generator for isentropic compression experiments journal January 2008
Frontiers of the physics of dense plasmas and planetary interiors: Experiments, theory, and applications journal April 2009
High current, 0.5-MA, fast, 100-ns, linear transformer driver experiments journal May 2009
An electron conductivity model for dense plasmas journal January 1984
The Veloce Pulsed Power Generator for Isentropic Compression Experiments conference June 2007
Electrical conductivity for warm, dense aluminum plasmas and liquids journal August 2002
Electrothermal Instability Mitigation by Using Thick Dielectric Coatings on Magnetically Imploded Conductors journal April 2014
Superfast assembly and synthesis of gold nanostructures using nanosecond low-temperature compression via magnetic pulsed power journal March 2017
Recent US advances in ion-beam-driven high energy density physics and heavy ion fusion
  • Logan, B. G.; Bieniosek, F. M.; Celata, C. M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 577, Issue 1-2 https://doi.org/10.1016/j.nima.2007.02.070
journal July 2007
Axial magnetic field injection in magnetized liner inertial fusion journal October 2017
Ultrabright X-ray laser scattering for dynamic warm dense matter physics journal March 2015
The Inverse Skin Effect journal November 1959
The phase diagram of water and the magnetic fields of Uranus and Neptune journal January 2011
The impact of three dimensional MHD instabilities on the generation of warm dense matter using a MA-class linear transformer driver journal September 2017
The Matter in Extreme Conditions instrument at the Linac Coherent Light Source journal April 2015
Predictions of x-ray scattering spectra for warm dense matter journal February 2014
High energy density physics with intense ion beams journal January 2016
Conductivity of warm dense matter including electron-electron collisions journal April 2015
Probing off-Hugoniot states in Ta, Cu, and Al to 1000 GPa compression with magnetically driven liner implosions journal January 2016
Practical Improvements to the Lee-More Conductivity Near the Metal-Insulator Transition journal March 2001
Relaxation model for extended magnetohydrodynamics: Comparison to magnetohydrodynamics for dense Z-pinches journal January 2011
Femtosecond Visualization of Lattice Dynamics in Shock-Compressed Matter journal October 2013
Probing warm dense matter using femtosecond X-ray absorption spectroscopy with a laser-produced betatron source journal August 2018
The role of magnetic field in the transition to streaming ablation in wire arrays journal May 2010
Principal Hugoniot, reverberating wave, and mechanical reshock measurements of liquid deuterium to 400 GPa using plate impact techniques journal April 2004
The Generation of Warm Dense Matter Samples Using Fast Magnetic Compression journal August 2015
The Generation of Warm Dense Matter Using a Magnetic Anvil Cell journal November 2018
Experimental Demonstration of the Stabilizing Effect of Dielectric Coatings on Magnetically Accelerated Imploding Metallic Liners journal February 2016
Impact of the Hall Effect on High-Energy-Density Plasma Jets journal January 2013
Simulations of the optical properties of warm dense aluminum journal January 2005
The impact of the Hall effect on high energy density plasma jets text January 2013
The impact of three dimensional MHD instabilities on the generation of warm dense matter using a MA-class linear transformer driver text January 2017
The generation of warm dense matter using a magnetic anvil cell text January 2018

Cited By (1)

Reduction of ablated surface expansion in pulsed-power-driven experiments using an aerosol dielectric coating journal July 2019