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Proceedings Paper

Analysis of raster scanning damage and conditioning experiments
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Paper Abstract

The raster scan technique is used for large optics damage tests and laser conditioning. We show that the "effective area" concept enables the possibility to compare various scanning schemes and to use raster scan experiments for NIF optics damage prediction. It is shown that the hexagonal lattice of laser beam imprints yields optimal use of each shot for most of the typically used parameters. The effects of beam fluence fluctuations and pointing inaccuracies on experiments are evaluated. To analyze raster scan conditioning experiments, we introduce the concept of "effective dose," i.e. total dose averaged over a unit cell of the scan lattice. This allows various scanning schemes to be compared quantitatively.

Paper Details

Date Published: 30 May 2003
PDF: 12 pages
Proc. SPIE 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization, (30 May 2003); doi: 10.1117/12.472048
Show Author Affiliations
Michael D. Feit, Lawrence Livermore National Lab. (United States)
Alexander M. Rubenchik, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 4932:
Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization
Gregory J. Exarhos; Arthur H. Guenther; Norbert Kaiser; Keith L. Lewis; M. J. Soileau; Christopher J. Stolz; Adolf Giesen; Horst Weber, Editor(s)

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