Absorption Spectrum of Se I in the Vacuum Ultraviolet Region

Abstract

The absorption spectrum of selenium was photographed in the region 800-2300 A on a variety of spectrographs including a 6.65 m normal incidence spectrograph. The absorption cell consisted of a flash pyrolysis system and the background continuum source was either a BRV source or a Garton flash source. The series limiting on 4p3 4S3/20 have been confirmed, revised and greatly extended. One hundred five (105) additional lines have been classified in the 1270-2000 A region, doubling the classified lines reported earlier in this region.