Application of a zirconium fluoride fiber optic diffuse reflectance probe for the remote identification of solids

Nathan C. Chaffin; Ian R. Lewis; Peter R. Griffiths

doi:10.1117/12.207748

20 April 1995 Application of a zirconium fluoride fiber optic diffuse reflectance probe for the remote identification of solids

Nathan C. Chaffin, Ian R. Lewis, Peter R. Griffiths

Author Affiliations +

Proceedings Volume 2574, Pacific Northwest Fiber Optic Sensor Workshop; (1995) https://doi.org/10.1117/12.207748
Event: Pacific Northwest Fiber Optic Sensor Workshop, 1995, Troutdale, OR, United States

Abstract

A novel fiber optic-based probe for the identification of pure and contaminated solids has been developed. Ultimately, this probe is to be used to characterize the make-up and degree of contamination of hazardous waste sites as a preliminary step in the clean-up process. The transmission range of zirconium fluoride fibers allows for the measurement of fundamental stretching frequencies in the mid-infrared (MIR) region as well as overtone and combination bands in the near-infrared (NIR) region. This provides a substantial increase of the measurable concentration range of this MIR/NIR system with respect to systems which can measure only MIR or NIR information. The spectra of samples measured using this fiber optic system is compared to spectra measured in a standard in-compartment diffuse reflectance accessory. The spectra are evaluated in terms of signal-to-noise, measurement time, and detection limits.

Citation Download Citation

Nathan C. Chaffin, Ian R. Lewis, and Peter R. Griffiths "Application of a zirconium fluoride fiber optic diffuse reflectance probe for the remote identification of solids", Proc. SPIE 2574, Pacific Northwest Fiber Optic Sensor Workshop, (20 April 1995); https://doi.org/10.1117/12.207748

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