Explosive
Detection:
Smiths Detection’s iLane
the quest for traces and vapours
Traditionally, the airport security n recent years, there has been a steady deployment of
checkpoint has focused on the search
for metallic items on the passengers
I
explosive detection technologies that have resulted in
bags being swabbed, sniffed and scanned for traces and
vapours of explosives. The focus, to date, has been on
detecting explosives in baggage (with the added recent
complication of liquid explosive detection); yet the
themselves, by use of archway and checkpoint of the future will have to be able to identify
explosives carried on the person too.
hand-held metal detectors, and also a Furthermore, as terrorists become more sophisticated,
there will be a need to detect an increasing variety of
range of prohibited items in cabin threats, including new types of explosives, chemical and
biological weapons and so forth. Meanwhile, the detection
baggage, through the use of X-ray systems deployed will have to be sufficiently automated
and simple enough for non-technical, non-scientific security
technology. However, the nature of personnel to use.
explosives – predominantly comprising Sample Acquisition
Arguably, the most important part of explosive detection
of organic materials – makes them technology is how samples are gathered in the first place.
Swipes or swabs are the most common method of sample
hard to detect using X-ray. As events acquisition. They are used to collect samples for Explosive
Trace Detectors (ETDs) to later analyse. The technology is
over the past few years have shown, based on the belief, or hope, that in secreting an explosive
device in a bag, the terrorist is bound to leave minute traces of
the need for better explosive detection the explosive material on parts of the bag with which they have
had physical contact. As a result, screeners concentrate their
technology is now of paramount swabbing efforts on handles, zips, locks and, for items like
laptops, keyboards.
importance. Siriol Haf Griffiths Sniffing is used primarily in hand-held detectors and
explosives trace portals. The Explosive Trace Portals (ETPs) are
reports. based on using air jets to ruffle clothing and dislodge particles,
16 December 2007 Aviationsecurityinternational
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