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Studies on laser-driven generation of fast high-density plasma blocks for fast ignition

Published online by Cambridge University Press:  08 June 2006

J. BADZIAK ,
S. GŁOWACZ ,
H. HORA ,
S. JABŁOŃSKI  and
J. WOŁOWSKI
J. BADZIAK
Affiliation:
Institute of Plasma Physics and Laser Microfusion, EURATOM Association, Warsaw, Poland
S. GŁOWACZ
Affiliation:
Institute of Plasma Physics and Laser Microfusion, EURATOM Association, Warsaw, Poland
H. HORA
Affiliation:
Department of Theoretical Physics, University of New South Wales, Sydney, Australia
S. JABŁOŃSKI
Affiliation:
Institute of Plasma Physics and Laser Microfusion, EURATOM Association, Warsaw, Poland
J. WOŁOWSKI
Affiliation:
Institute of Plasma Physics and Laser Microfusion, EURATOM Association, Warsaw, Poland
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Abstract

The properties of plasma (proton) block driven by the laser-induced skin-layer ponderomotive acceleration (S-LPA) mechanism are discussed. It is shown that the proton density of the plasma block is about a thousand times higher than that of the proton beam produced by the target normal sheath acceleration (TNSA) mechanism. Such a high-density plasma (proton) block can be considered as a fast ignitor of fusion targets. The estimates show that using the S-LPA driven plasma block, the ignition threshold for precompressed DT fuel can be reached at the ps laser energy ≤ 100 kJ.

Keywords

Fast ignitionIon beamsLaserNuclear fusionPlasma
Type
Research Article
Information
Laser and Particle Beams , Volume 24 , Issue 2 , June 2006 , pp. 249 - 254
Copyright
© 2006 Cambridge University Press

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References

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