Fast ignition of inertial fusion targets by laser-driven carbon beams

被引：97
|
作者：
Honrubia, J. J. [1 ]
Fernandez, J. C. [2 ]
Temporal, M. [1 ]
Hegelich, B. M. [2 ,3 ]
Meyer-ter-Vehn, J. [4 ]
机构：
[1] Univ Politecn Madrid, ETSI Aeronut, E-28040 Madrid, Spain
[2] Los Alamos Natl Lab, Los Alamos, NM 87544 USA
[3] LMU Munchen, Fak Phys, D-85748 Garching, Germany
[4] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源：
PHYSICS OF PLASMAS | 2009年 / 16卷 / 10期
关键词：
D O I：
10.1063/1.3234248
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Two-dimensional simulations of ion beam driven fast ignition are presented. Ignition energies of protons with Maxwellian spectrum and carbon ions with quasimonoenergetic and Maxwellian energy distributions are evaluated. The effect of the coronal plasma surrounding the compressed deuterium-tritium is studied for three different fuel density distributions. It is found that quasimonoenergetic ions have better coupling with the compressed deuterium-tritium and substantially lower ignition energies. Comparison of quasimonoenergetic carbon ions and relativistic electrons as ignitor beams shows similar laser energy requirements, provided that a laser to quasimonoenergetic carbon ion conversion efficiency around 10% can be achieved. (C) 2009 American Institute of Physics. [doi:10.1063/1.3234248]
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