Design and performance of a low-temperature-multi-pass-cell for absorbance measurements of atmospheric gases. Application to ozone

Accurate experimental measurements of the absorption spectra of atmospheric gases are of primary importance for chemical transport modelization of the tropospheric atmosphere.We present a special multi-pass-White-cell design adapted for the measurement of absorption cross-sections of corrosive gases in the visible, and we illustrate its performance down to −144 K in the case of ozone.