J. Phys. IV France
Volume 133, June 2006
Page(s) 1047 - 1050
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
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. Osman3

1  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

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.

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