Using integrated absorption to calibrate optical cavity spectrometers
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Published Version
Date
2015-03-02
Authors
Fullam, Donovan P.
Shoji, K.
Venables, Dean S.
Journal Title
Journal ISSN
Volume Title
Publisher
Royal Society of Chemistry
Published Version
Abstract
Sensitive absorption techniques using optical cavities (such as CEAS or ICOS) generally need the spectrometer response to be calibrated for quantitative measurements. Most calibrations are based on the instrument response to a known, steady state absorption. Such calibrations often have drawbacks in terms of cost, complexity, or convenience, especially for field measurements. In this paper, we show that the relationship between the integrated absorption and a known amount of absorber provides an alternative calibration strategy that yields a highly linear calibration curve and has a low uncertainty. This method is straightforward to implement and offers a practical alternative to other calibration strategies.
Description
Keywords
Cross section , Water vapour , CEAS , Spectroscopy , Extinction , Aerosol
Citation
FULLAM, D. P., SHOJI, K. & VENABLES, D. S. 2015. Using integrated absorption to calibrate optical cavity spectrometers. Analytical Methods, 7, 3298-3301. http://dx.doi.org/10.1039/C5AY00080G