System and method for combined raman and LIBS detection with targeting
First Claim
1. A method comprising:
- illuminating a region of interest to thereby generate a first plurality of interacted photons;
filtering said first plurality of interacted photons;
detecting said first plurality of interacted photons to thereby generate a test data set representative of said region of interest;
analyzing said test data set to thereby identify a unknown sample within said region of interest;
illuminating a first portion of said unknown sample to thereby generate a second plurality of interacted photons;
illuminating a second portion of said unknown sample to thereby generate a third plurality of interacted photons;
filtering at least one of said second plurality of interacted photons and said third plurality of interacted photons;
detecting said second plurality of interacted photons to thereby generate a LIBS data set representative of said unknown sample;
detecting said third plurality of interacted photons to thereby generate a Raman data set representative of said unknown sample; and
analyzing at least one of said LIBS data set and said Raman data set to thereby identify said unknown sample.
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Abstract
A system and method for locating and identifying unknown samples. A targeting mode may be utilized to scan regions of interest for potential unknown materials. This targeting mode may interrogate regions of interest using SWIR and/or fluorescence spectroscopic and imaging techniques. Unknown samples detected in regions of interest may be further interrogated using a combination of Raman and LIBS techniques to identify the unknown samples. Structured illumination may be used to interrogate an unknown sample. Data sets generated during interrogation may be compared to a reference database comprising a plurality of reference data sets, each associated with a known material. The system and method may be used to identify a variety of materials including: biological, chemical, explosive, hazardous, concealment, and non-hazardous materials.
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Citations
32 Claims
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1. A method comprising:
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illuminating a region of interest to thereby generate a first plurality of interacted photons; filtering said first plurality of interacted photons; detecting said first plurality of interacted photons to thereby generate a test data set representative of said region of interest; analyzing said test data set to thereby identify a unknown sample within said region of interest; illuminating a first portion of said unknown sample to thereby generate a second plurality of interacted photons; illuminating a second portion of said unknown sample to thereby generate a third plurality of interacted photons; filtering at least one of said second plurality of interacted photons and said third plurality of interacted photons; detecting said second plurality of interacted photons to thereby generate a LIBS data set representative of said unknown sample; detecting said third plurality of interacted photons to thereby generate a Raman data set representative of said unknown sample; and analyzing at least one of said LIBS data set and said Raman data set to thereby identify said unknown sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification