Self-similar solution of laser-produced plasma expansion into vacuum with kappa-distributed electrons
and | Jun 15, 2016
Published Online: Jun 15, 2016
Page range: 115 - 118
Received: Sep 17, 2015
Accepted: Nov 09, 2015
DOI: https://doi.org/10.1515/nuka-2016-0020
© by Djamila Bennaceur-Doumaz
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
The expansion of semi-infinite laser produced plasma into vacuum is analyzed with a hydrodynamic model for cold ions assuming electrons modeled by a kappa-type distribution. Self-similar analytic expressions for the potential, velocity, and density of the plasma have been derived. It is shown that nonthermal energetic electrons have the role of accelerating the self-similar expansion.