Spatial filter issues

James E. Murray; David Milam; Charles D. Boley; Kent G. Estabrook; Florian Bonneau

doi:10.1117/12.354163

23 July 1999 Spatial filter issues

James E. Murray, David Milam, Charles D. Boley, Kent G. Estabrook, Florian Bonneau

Proceedings Volume 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion; (1999) https://doi.org/10.1117/12.354163
Event: Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, 1998, Monterey, CA, United States

Abstract

Beamlet measurements show that cone pinholes outperform other types tested with regard to both closure and back reflections. A +/- 150 (mu) rad stainless steel cone remained open for a 15.5 kJ, 10:1 contrast shaped pulse with +/- 7.5 (mu) rad of SSD divergence, which more than meets the requirements for a NIF ignition pulse. Measurements also showed the maximum tolerable pressures in the NIF spatial filters to be a few milliTorr, leading to recommendations of 0.1 nd 0.6 mTorr for the NIF transport and cavity spatial filters, respectively.

Citation Download Citation

James E. Murray, David Milam, Charles D. Boley, Kent G. Estabrook, and Florian Bonneau "Spatial filter issues", Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); https://doi.org/10.1117/12.354163

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