EXPLOSIVES AND NARCOTICS TRACE DETECTION
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EXPLOSIVES AND
NARCOTICS TRACE DETECTION
Wiping, Vortex motion
IMS, ionization
Top: Sampling principle.
Buttom: System Schematic
(click to zoom)
Technology QS-H150 (Explosives Detection)

The QS-H150 is utilizing a non-contact as well as wiping methodology of sampling. In the non-contact mode, the QS-H150 uses a desorber, based on the vortex motion of hot air, to directly volatilize explosives on the contaminated surfaces. Particles and vapors are dislodged from these surfaces and drawn into the detector’s ionization source. In the ‘wiping’ mode, samples are collected by wiping and presented to the vortex desorber where the volatilization and transfer of explosives vapors to the ionization source take place. The photonic (nonradioactive) ionization source transforms explosives molecules into ions (IMS principle). After ionization, explosives’ ions ‘drift’, accelerated by an electric field. The identification is based on their substance specific drift time between source and collector compared to stored threat library data.

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