EXPLOSIVES DETECTION USING OPTICAL SPECTROSCOPY

摘要

A method for determining whether a sample includes a nitrate-based explosive comprises receiving (202) the sample and selecting (204) an area of interest on the sample. Then, at least a portion of the area of interest is interrogated (206) with an optical source (106A, 106E) to produce a spectrum with an amplitude. The amplitude of a first portion of the spectrum is compared (208) to a first predetermined threshold to determine if the sample includes a nitrate. After determining that the sample includes a nitrate in the area of interest, the amplitude of a second portion of the spectrum is compared (212) to a second predetermined threshold to determine if the sample includes a secondary indicator. Then, an indicator is activated (214) based on the determinations.