New direct-drive radiation preheated high-gain target designs for laser fusion

Denis G. Colombant; J. H. Gardner; Andrew J. Schmitt; Stephen E. Bodner; M. Klapisch; Stephen P. Obenschain; L. Phillips

doi:10.1117/12.425599

23 April 2001 New direct-drive radiation preheated high-gain target designs for laser fusion

Denis G. Colombant, J. H. Gardner, Andrew J. Schmitt, Stephen E. Bodner, M. Klapisch, Stephen P. Obenschain, L. Phillips

Author Affiliations +

Proceedings Volume 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter; (2001) https://doi.org/10.1117/12.425599
Event: 26th European Conference on Laser Interaction with Matter (ECLIM 2000), 2000, Prague, Czech Republic

Abstract

A new target design has been proposed which displays a high gain at 1.3 MJ laser energy and improved Rayleigh-Taylor stability with a KrF laser system. The laser contrast ratio in this case is around 250 and the laser pulse lengths is around 28 ns. For a system like NIF, where the contrast ratio is limited to about 100, where no zooming is planned, where the laser pulse length is limited to less than 20 ns and 1/3 micrometers is the laser light wavelength, we have looked at targets using radiation preheat. We have designed targets for this application and investigated more fully the trade- off between gain and stability.

Citation Download Citation

Denis G. Colombant, J. H. Gardner, Andrew J. Schmitt, Stephen E. Bodner, M. Klapisch, Stephen P. Obenschain, and L. Phillips "New direct-drive radiation preheated high-gain target designs for laser fusion", Proc. SPIE 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter, (23 April 2001); https://doi.org/10.1117/12.425599

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