Explosives detection using optical spectroscopy
US10401297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2018 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3595
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Detecting threat materials used in explosives is performed by receiving a sample, and selecting an area of interest on the sample suspected of containing a threat material indicative of an explosive. Detection also includes interrogating the area of interest with a Raman laser producing a Raman spectrum, and comparing an amplitude of a first spectral region in the Raman spectrum to a first predetermined threshold. Detection further includes performing a verification, if the determination indicates that the area of interest includes the threat material, by checking the interrogated area of interest for a secondary indicator of the presence of the threat material, by comparing an amplitude of a second spectral region in the Raman spectrum, which is different from the first spectral region in the Raman spectrum, to a second predetermined threshold, and activating an indicator if the verification indicates that the area of interest contains the threat material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.