https://doi.org/10.1140/epjd/e2016-70187-4
Regular Article
Target heating due to the shock produced hot electrons in the shock ignition scheme
1 Plasma Physics Research School, NSTRI, End of North Kargar Avenue, Tehran, Iran
2 Department of Energy Engineering and Physics, Amirkabir University of Technology, Hafez Avenue, Tehran, Iran
3 Department of Physics, University of Tabriz, Tabriz, Iran
a
e-mail: plasma.rezaei@gmail.com
Received: 14 March 2016
Received in final form: 8 June 2016
Published online: 4 October 2016
Hot electrons are produced as a result of ignitor-corona interaction of the shock ignition scheme. In the present paper, penetration depth and energy deposition of such energetic electrons have been qualitatively discussed applying Monte Carlo simulations. Target real conditions for propagating hot electrons were taken from 1-D hydrodynamic simulations. It has been found that compressing target up to 10.4 ns helps to stop hot electrons at a proper distance thus, preventing fuel preheating. In addition, embedding hot electron energy source into the hydrodynamic code, changes of parameters p, ρ and ρR are calculated. Monoenergetic electron beams have been launched at different times of target compression. The simulation results indicate the creation of high ablation pressure as well as maximum shell areal density by a 50 keV monoenergetic electron beam with intensity 1 PW/cm2 irradiated on the compressed target at a proper time which indeed improves the implosion processes.
Key words: Plasma Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2016
