Quartz Enhanced Photoacoustic Spectroscopy for Detection of Improvised Explosive Devices and Precursors

<div>Schematics of the experimental set-up. (a) The liquid is injected inside the evaporation chamber, the input and output valves are closed, and the nitrogen can flow through the by-pass; (b) the input and output valves are opened, the by-pass is closed, and the vapours flow through the QEPAS.</div>

Advances in Optical Technologies

fig1

Figure 1

Figure 1: Quartz Enhanced Photoacoustic Spectroscopy for Detection of Improvised Explosive Devices and Precursors 