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9 June 2011 High-intensity laser plasma interactions and fast ignition
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Fast ignition of inertial fusion targets is one of the promising ways for future energy production. Recent studies of ignition with fast electrons have shown only little progress - mainly caused by the unresolved problem of controlled electron transport in dense plasmas. Ion-assisted ignition schemes are less sensitive in this regard and laser energies in the range of 50 - 100 kJ are required for fuel ignition. Picosecond laser pulses with intensities exceeding 1022 Wcm-2 and a high intensity contrast of better than 10-10 are needed thereby. The cone-guided target proves to be the most efficient scheme, although targets without a cone are more appropriate for high repetition rate operation.
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Vladimir T Tikhonchuk and Theodor Schlegel "High-intensity laser plasma interactions and fast ignition", Proc. SPIE 8080, Diode-Pumped High Energy and High Power Lasers; ELI: Ultrarelativistic Laser-Matter Interactions and Petawatt Photonics; and HiPER: the European Pathway to Laser Energy, 80801G (9 June 2011);

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