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Spatiotemporal evolution of a thin plasma foil with Kappa distribution

Published online by Cambridge University Press:  27 August 2014

H. Mehdian ,
A. Kargarian  and
K. Hajisharifi
H. Mehdian*
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, Tehran, Iran
A. Kargarian
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, Tehran, Iran
K. Hajisharifi
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, Tehran, Iran
*
Address correspondence and reprint requests to: H. Mehdian, Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr. Mofatteh Avenue, Tehran, Iran. E-mail: [email protected]
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Abstract

The one-dimensional behavior of a thin plasma foil heated by laser is studied, emphasizing on the fully kinetic effects associated with initial energetic electrons using a relativistic kinetic 1D3V Particle-In-Cell code. For this purpose, the generalized Lorentzian (Kappa) function inclusive the high energy tail is employed for initial electron distribution. The presence of the initially high-energy electrons leads to a different ion energy spectrum than the initially Maxwellian distribution. It is shown for the smaller Kappa parameter k where the high energy tail of the electron distribution function becomes more significant, the electron cooling rate increases. Moreover, the spatiotemporal evolution of electric field is strongly affected by the initial super-thermal electrons.

Keywords

Cooling rateHigh energy tailKappa functionParticle-in-cell codeThin plasma foil
Type
Research Article
Information
Laser and Particle Beams , Volume 32 , Issue 4 , December 2014 , pp. 523 - 529
Copyright
Copyright © Cambridge University Press 2014 

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