The purpose of this research was to observe the core and far wing absorption spectra of the D1 and D2 lines of cesium (Cs) perturbed by argon (Ar). A 1.33 m scanning monochromator with a PMT detector was used to measure the spectra from 8300 Ang. to 9100 Ang. A heat pipe was used to control the Cs concentration and Ar pressure allowing for a broad range of spectra to ...
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