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Comparison between jet collision and shell impact concepts for fast ignition

Published online by Cambridge University Press:  02 June 2005

P. VELARDE ,
F. OGANDO ,
S. ELIEZER ,
J.M. MARTÍNEZ-VAL ,
J.M. PERLADO  and
M. MURAKAMI
P. VELARDE
Affiliation:
Instituto de Fusión Nuclear, Madrid, Spain
F. OGANDO
Affiliation:
Instituto de Fusión Nuclear, Madrid, Spain Universidad Nacional de Educación a Distancia, Madrid, Spain
S. ELIEZER
Affiliation:
Instituto de Fusión Nuclear, Madrid, Spain Soreq Nuclear Center, Yavne, Israel
J.M. MARTÍNEZ-VAL
Affiliation:
Instituto de Fusión Nuclear, Madrid, Spain
J.M. PERLADO
Affiliation:
Instituto de Fusión Nuclear, Madrid, Spain
M. MURAKAMI
Affiliation:
Institute of Laser Engineering, Osaka, Japan
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Abstract

Recently a new fast ignitor concept has been proposed by Velarde et al. (2003) that uses only one energy drive. In this concept, the ignition is induced by the collision of high velocity matter accelerated inside a conical guide. The first model used a jet produced by illuminating a conical shape with a laser or X-rays. On the other hand, in the shell impact concept, the compressed deuterium-tritium fuel is ignited by a separately imploded shell traveling in a guiding cone. In this article, we will study the first design, jet driven concept that have been developed during this year. We use for this work the Arwen code (Ogando & Velarde, 2001; Rendleman et al., 2000), with two-dimensional (2D) multi-group radiation transport. The main parameter is to analyze the specific power transmitted to the target during the collision. Problems with the designs are the guide integrity during the collapse, the radiation preheating, and the average efficiency of the process, etc. which we will address as well.

Keywords

AMRFast ignitionHypervelocity jetsICF
Type
Research Article
Information
Laser and Particle Beams , Volume 23 , Issue 1 , March 2005 , pp. 43 - 46
Copyright
2005 Cambridge University Press

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