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Atmospheric and Oceanic Optics

2018 year, number 11

The low-temperature cell for studying the absorption spectra of greenhouse gases

V.I. Serdyukov, L.N. Sinitsa, A.A. Lugovskoi, N.M. Emelyanov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634055, Russia
Keywords: Фурье-спектроскопия, спектр поглощения, метан, Fourier spectroscopy, absorption spectrum, methane


A low temperature vacuum cell 220 cm long with windows of quartz, ZnSe, and KBr has been developed for work with the Bruker IFS 125-M high resolution Fourier spectrometer providing a threshold sensitivity to absorption on the order of 10-7 cm-1. The cell allows recording the absorption spectra of gases in the temperature range from 200 to 296 K with the accuracy of 0.9 K in the region 1000-20000 cm-1.