The low-temperature cell for studying the absorption spectra of greenhouse gases
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<sup>-</sup><sup>7</sup> cm<sup>-</sup><sup>1</sup>. 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<sup>-</sup><sup>1</sup>.