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Proceedings Paper

Uncertainty detection for NIF normal pointing beam images
Author(s): Abdul A. S. Awwal; Clement Law; S. Walter Ferguson
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Paper Abstract

The National Ignition Facility at the Lawrence Livermore National Laboratory when completed in 2009, will deliver 192-beams aligned precisely at the center of the target chamber producing extreme energy densities and pressures. Video images of laser beams along the beam path are used by automatic alignment algorithms to determine the position of the beams for alignment purposes. However, noise and other optical effects may affect the accuracy of the calculated beam location. Realistic estimation of the uncertainty is necessary to assure that the beam is monitored within the clear optical path. When the uncertainty is above a certain threshold the automated alignment operation is suspended and control of the beam is transferred to a human operator. This work describes our effort to quantify the uncertainty of measurement of the most common alignment beam.

Paper Details

Date Published: 18 October 2007
PDF: 6 pages
Proc. SPIE 6695, Optics and Photonics for Information Processing, 66950R (18 October 2007); doi: 10.1117/12.740149
Show Author Affiliations
Abdul A. S. Awwal, Lawrence Livermore National Lab. (United States)
Clement Law, Lawrence Livermore National Lab. (United States)
S. Walter Ferguson, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 6695:
Optics and Photonics for Information Processing
Abdul A.S. Awwal; Khan M. Iftekharuddin; Bahram Javidi, Editor(s)

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