Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apjs..127..267c&link_type=abstract
The Astrophysical Journal Supplement Series, Volume 127, Issue 2, pp. 267-273.
Astronomy and Astrophysics
Astronomy
17
Atomic Processes, Equation Of State, Methods: Laboratory, Shock Waves
Scientific paper
A high-intensity laser was used to shock compress liquid deuterium to pressures between 0.22 and 3.4 megabars (Mbar). Shock density, pressure, and temperature were determined using a variety of experimental techniques and diagnostics. This pressure regime spans the transformation of deuterium from an insulating molecular fluid to an atomic metallic fluid. Data reveal a significant increase in compressibility and a temperature inflection near 1 Mbar, both indicative of such a transition. Single-wavelength reflectivity measurements of the shock front demonstrated that deuterium shocked above ~0.5 Mbar is indeed metallic.
Budil Kimberly S.
Cauble Robert
Celliers Peter M.
Collins George W.
da Silva Luis B.
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