Articles | Volume 10, issue 3
Atmos. Meas. Tech., 10, 1203–1213, 2017
https://doi.org/10.5194/amt-10-1203-2017
Atmos. Meas. Tech., 10, 1203–1213, 2017
https://doi.org/10.5194/amt-10-1203-2017

Research article 29 Mar 2017

Research article | 29 Mar 2017

Calibration of a multi-pass photoacoustic spectrometer cell using light-absorbing aerosols

Nir Bluvshtein et al.

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Latest update: 17 Jan 2022
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Short summary
Accurate PAS measurements rely on accurate calibration of their signal. Ozone is often used for calibrating PAS instruments by relating the photoacoustic signal to the absorption coefficient measured by an independent method. We offer an alternative approach to calibrate photoacoustic aerosol spectrometers with aerosolized, light-absorbing organic materials. To implement this method, we first determined the complex refractive index of an organic dye, using spectroscopic ellipsometry.