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A specific multi-channel photon-counting unit for air-pollution measurement

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6 Author(s)
Papageorgas, P. ; Dept. of Inf., Athens Univ., Greece ; Maroulis, D. ; Karkanis, S. ; Theofanous, N.
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A photon-counting system based on an appropriate microcontroller has been developed. This system controls, acquires, processes and stores the data from a high-resolution multi-channel gas analyzer and provides accurate photon-counting measurements using suitable Photomultiplier Tubes (PMTs) as detectors of the Raman scattering signals. The implemented system ensures low power consumption (90 W for the overall system), low cost, increased reliability and high sensitivity. Also the entire unit allows auto-calibration and drift compensation. Finally, the present photon-counting system can be used in a broad field of applications, in medical electronics (e.g. confocal microscopy), air pollution optical measurements, laser sounding of the atmosphere, and electrooptical systems, provided that PMTs are used in the pulse-counting mode

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Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on  (Volume:3 )

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