Research Article
Quartz Enhanced Photoacoustic Spectroscopy for Detection of Improvised Explosive Devices and Precursors
Figure 6
(a) a micrograph of a set of microresonator tubes manufactured by cutting and polishing of stainless steel needles. (b, left) A representative layout of the QTF and microresonator assembly; (b, right) a micrograph of the microresonator assembled very close to the QTF inside the optical cell of our QEPAS sensor.
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