Explosive detection: Difference between revisions

Revision as of 18:21, 4 November 2020

Revision as of 00:38, 2 February 2021

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One technique compares reflected [[ultraviolet]], [[infrared]] and [[visible light]] measurements on multiple areas of the suspect material. This has an advantage over olfactory methods in that a sample does not need to be prepared. A patent exists for a portable explosive detector using this method.<ref>{{cite web|url= https://www.newscientist.com/blog/invention/2008/05/portable-explosives-detector.html |title= Portable explosives detector|date= 2008-05-28| first =Justin | last = Mullins | work = New Scientist Blogs}}</ref>

Mass spectrometry is seen as the most relevant new spectrometry technique.<ref>{{Citation | url = http://www.nap.edu/catalog/10996.html | title = Opportunities to Improve Airport Passenger Screening with Mass Spectrometry | publisher = The National Academies Press| doi = 10.17226/10996 | isbn = 978-0-309-09240-1 | year = 2004 }}.</ref> Several manufacturers have products that are under development, both in the US, Europe and Israel,<ref>{{cite web | publisher = Laser detect |url= http://www.laser-detect.com/brochures/LUMIN9689_narrowgate.pdf |title= Lumin 9689 Narrow gate |accessdateaccess-date=2012-04-11 |url-status= dead | type = brochure | format = [[Portable document format | PDF]] |archiveurlarchive-url= https://web.archive.org/web/20120823083344/http://www.laser-detect.com/brochures/LUMIN9689_narrowgate.pdf |archivedatearchive-date= 2012-08-23}}</ref> including Laser-Detect in Israel, FLIR Systems and Syagen in the US and SEDET in Europe.

===X-ray machines===

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==Detection aids==

A [[taggant|detection taggant]] can be added when explosives are made to make detection easier. The Montreal Convention 1991 is an international agreement requiring manufacturers of explosives to do this.<ref>{{Citation | chapter = XX | chapter-url = http://dgca.nic.in/int_conv/Chap_XX.pdf | title = International convention | publisher = NIC}}.</ref> An example is with [[Semtex]], which now is made with [[DMDNB]] added as a detection taggant.<ref>{{cite web|url= http://www.explosia.cz/en/?show%3Dsemtex |title= Semtex |accessdateaccess-date=2009-05-22 |url-status=dead |archiveurlarchive-url= https://web.archive.org/web/20090805123548/http://www.explosia.cz/en/?show=semtex |archivedatearchive-date= 2009-08-05}}</ref> [[DMDNB]] is a common taggant as dogs are sensitive to it. In the UK the relevant legislation is the Marking of Plastic Explosives for Detection Regulations 1996.<ref>{{Citation | publisher = OPSI | url = http://www.opsi.gov.uk/si/si1996/Uksi_19960890_en_1.htm | title = The Marking of Plastic Explosives for Detection Regulations | year = 1996}}</ref>

==Bogus devices==