Method and system for detecting an explosive

Details Method and system for detecting an explosive Method and system for detecting an explosive

2010-07-22

2010-12-07

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Neutron responsive means

Reexamination Certificate

active

07847265

ABSTRACT:
A method and system for detecting at least one explosive in a vehicle using a neutron generator and a plurality of NaI detectors. Spectra read from the detectors is calibrated by performing Gaussian peak fitting to define peak regions, locating a Na peak and an annihilation peak doublet, assigning a predetermined energy level to one peak in the doublet, and predicting a hydrogen peak location based on a location of at least one peak of the doublet. The spectra are gain shifted to a common calibration, summed for respective groups of NaI detectors, and nitrogen detection analysis performed on the summed spectra for each group.

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Chichester, David L., et al., Webpage; The Industrial Physicist; http://www.aip.org/tip/INPHFA/vol-9/iss-6/p22.html; (Jan. 2005); 6 pages.

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