Abstract
A Sch\"uler tube with a water-cooled aluminum cathode, with He gas for maintaining the discharge, was attached to a vacuum spectrograph employing a 1.5 meter grating of 15,000 lines per inch. The sulfur spectrum was excited by vaporizing some sulfur in the tube while the discharge was in operation. The wave-length range photographed was from 0-2600A, and in the region 1050-2400A many new lines were observed and classified. It was thus possible to establish the low singlet terms of the arc spectrum and some of the higher terms built on the doublet $P$ and $D$ states of the ion as well as some higher members of series built on the quartet $S$ state of the ion.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
