High Energy Density Plasmas: X-ray Sources and Plasma Jets
David HAMMER
Cornell University
Résumé :
The Cornell University Laboratory of Plasma Studies makes use of 1
trillion watt, 1 million ampere pulsed power generators for
fundamental studies and applications of high energy density plasmas
in several configurations. Some are as high density and temperature
as $10^{22}/cm^3$ and 1.5 keV, respectively, with very short life, $<<$ 1
ns. Others last as long as a few hundred nanoseconds at somewhat
lower density and temperature and take the form of plasma jets that
can interact with other plasmas. These have been used for studies of
the interaction of plasma jets with a cross wind in a configuration
with dimensionless parameters that are of interest to the
astrophysics community. The very short-lived, hot plasma is an
extremely bright x-ray source that has been used for x-ray absorption
spectroscopy in high energy density plasmas and could be used to
determine the radiation transfer properties of materials that make up
such astrophysical objects as supernova remnants.
