Abstract
Abstract : Vibrational sum frequency spectroscopy (VSFS) can be used to detect trace quantities of high explosives (HEs) adsorbed on surfaces. As a trace detection method, VSFS has the advantages of being non-contact and non-destructive with sub-second detection times. Therefore, a HE-detection method for detecting IEDs or portal defense that was based on VSFS could provide stand-off trace detecting for IEDs and increase the throughput of package screening (in terms of objects scanned per minute) for portal defense. Furthermore, because VSFS does not degrade contaminants on surfaces, a positive detection result leaves any explosives detected in place for subsequent forensic analysis such as fingerprint identification. This research has shown that that VSFS provides high chemically selectivity for nitro-containing HEs in the presence of environmental chemical contamination.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
