×

Explosives detection using optical spectroscopy

  • US 10,401,297 B2
  • Filed: 05/29/2018
  • Issued: 09/03/2019
  • Est. Priority Date: 04/17/2014
  • Status: Active Grant
First Claim
Patent Images

1. A method for detecting threat materials used in explosives, comprising:

  • receiving a sample;

    selecting a target location within the sample that distinguishes a target material from an innocuous material;

    interrogating the selected target material, with a Raman laser, thereby producing a Raman spectrum;

    determining whether the interrogated target material is suspected of being a threat material by comparing an amplitude of a first spectral region in the Raman spectrum, to a first predetermined threshold;

    performing a verification, only when the determination indicates that the interrogated target material is suspected of being the threat material, by comparing a second predetermined threshold against an amplitude of a second spectral region in the Raman spectrum measured during the interrogation, where the second spectral region is different from the first spectral region; and

    activating an indicator if the verification indicates that the interrogated target material is the threat material.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×