Issue |
J. Phys. IV France
Volume 133, June 2006
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Page(s) | 1047 - 1050 | |
DOI | https://doi.org/10.1051/jp4:2006133212 | |
Published online | 16 June 2006 |
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 1047-1050
DOI: 10.1051/jp4:2006133212
Debye sheath of laser produced plasmas generalized to the quark-gluon plasmas and high energy density physics
H. Hora1, G.H. Miley2 and F. Osman31 Department of Theoretical Physics, University of New South Wales, Sydney 2052, Australia
2 Fusion Studies Laboratory, University of Illinois, Urbana 61801, USA
3 School of Quantitative Methods and Mathematical Science, University of Western Sydney, Penrith South 1797, Australia
Abstract
Generation of very intense proton beams at relativistic
interaction of ps-PW laser pulses at the rare side of irradiated foils were
explained by a PIC computation as a target normal sheath acceleration
mechanism (TNSA) [1]. This is a typical process in an electric double layer
of a Debye sheath in contrast to the sub-relativistic nonlinear forces for
the skin layer acceleration (SLA) at plane target geometry based on very
high contrast ratio to avoid relativistic self-focusing. We discuss the
Debye layer process as known from laser generated plasma and how these
properties are essential for the laser-plasma interaction process, e.g.
under the relativistic conditions for the TNSA process, while the
subrelativistic plasma blocks for ignition of condensed or higher density
deuterium-tritium have a sufficiently low Debye length. From these results,
a basically new concept of nuclear forces and consequences about quark-gluon plasma can be derived by generalizing the Debye layer property for the confinement
of the hadrons in a nucleus.
© EDP Sciences 2006