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Detection of unrecovered land mines is a growing international
problem. Unrecoverd land mines are a legacy that continues
to harm people long after the hostilities cease. The
most widely used tool for land mine detection today
is the hand-held metal detector. Other methods for landmine
detection are limited due to their high false alarm
rate.
Chemical sensors have been investigated for mine detection.
For chemical species having favorable spectral properties,
remote sensing can be achieved by fluorescence light
detection and ranging LIDAR. Nitroaromatic explosives
exhibit strong ultraviolet absorption but low fluorescence,
thus direct detection of TNT is not practical. Indirect
detection of TNT in soil can be obtained using a synthetic
chemical polymer that exhibits a change in fluorescence
in the presence of an explosive compound.
Smart Sand uses a distributed chemical particle with
a fluorescent signature and LIDAR detection.
For more information, select from the following categories
below or download the brochure
(pdf):
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