FT-IR spectroscopy is the technology of choice to identify solid and liquid phase unknown samples. Advances in
instrument portability have made possible the use of FT-IR spectroscopy in emergency response and military field
applications. The samples collected in those harsh environments are rarely pure and typically contain multiple chemical
species in water, sand, or inorganic matrices. In such critical applications, it is also desired that in addition to broad
chemical identification, the user is warned immediately if the sample contains a threat or target class material (i.e.
biological, narcotic, explosive). The next generation HazMatID 360 combines the ruggedized design and functionality
of the current HazMatID with advanced mixture analysis algorithms. The advanced FT-IR instrument allows effective
chemical assessment of samples that may contain one or more interfering materials like water or dirt. The algorithm was
the result of years of cumulative experience based on thousands of real-life spectra sent to our ReachBack spectral
analysis service by customers in the field. The HazMatID 360 combines mixture analysis with threat detection and
chemical hazard classification capabilities to provide, in record time, crucial information to the user. This paper will
provide an overview of the software and algorithm enhancements, in addition to examples of improved performance in
mixture identification.
David Williamson, James McClay, Keith Andresen, Gregg Gallatin, Marc Himel, Jorge Ivaldi, Christopher Mason, Andrew McCullough, Charles Otis, John Shamaly, Carol Tomczyk
Catadioptric step-and-scan lithography offers specific advantages over step-and-repeat all- refractive (dioptric) systems as resolution requirements drive to 0.25micrometers in volume production. For the Micrascan family of step-and-scan tools this step in the evolutionary path from 0.35micrometers to 0.25micrometers has involved changes to both the projection optics and illumination system.
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