Method, apparatus and system for rapid and sensitive standoff detection of surface contaminants

作者: Patrick Louis Ponsardin , Christopher Scott Kletecka , Jeromy Paul Rezac

DOI:

关键词: Optical fiberSpectrographHazardous substanceRadiationSurface (mathematics)OpticsLight beamThroughput (business)BundleMaterials science

摘要: Systems and methods for fast sensitive standoff surface-hazard detection with high data throughput, spatial resolution degree of pointing flexibility. The system comprises a first hand-held unit that directs an excitation beam onto surface is located distance away from the optical subsystem captures scattered radiation as result light. connected via link includes bundle fibers, to second unit, called processing unit. fiber-coupled spectrograph convert spectral data, processor analyzes collected detect and/or identify hazardous substance. may be contained within body-wearable housing or apparatus so together form man-portable assembly. In one embodiment, can continuously without interruptions scan 1-meter while generating Raman spectral-frames at rates 25 Hz.

参考文章(47)
Marian Martin Szczesniak, Michael Thomas Beecroft, Barry James Smith, John Fujima Matsumoto, James Paul Ferguson, Hand-held spectrometer ,(2005)
Peter Wheel, Michael E. Dobbs, Laser spectroscopy using a master/slave architecture ,(2002)
Kevin Bruce Aptowicz, Kristan P. Gurton, Ronald Gene Pinnick, Yong-Le Pan, Steven Clyde Hill, Richard Kounai Chang, Method and instrumentation for determining absorption and morphology of individual airborne particles ,(2003)
Steven Clyde Hill, Richard Kounai Chang, Jean-Pierre Wolf, Aerosol particle analyzer for measuring the amount of analyte in airborne particles ,(2005)