Wave-Length Standards in the Extreme Ultraviolet Spectra of Carbon, Nitrogen, Oxygen and Aluminum. And The Spectrum of Sulphur, SII

Citation

Ingram, Sydney Bettinson (1928) Wave-Length Standards in the Extreme Ultraviolet Spectra of Carbon, Nitrogen, Oxygen and Aluminum. And The Spectrum of Sulphur, SII. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/PWSF-QN61. https://resolver.caltech.edu/CaltechETD:etd-02282005-085312

Abstract

[Abstract for] Wave-length determinations. The wave-lengths of lines in the extreme ultra-violet spectra of carbon, nitrogen, oxygen and aluminum have been determined with an accuracy of .01 to .04A by direct comparison with iron standards.

pp' groups in carbon C₁₁₁ and nitrogen N_IV -- pp' Groups of carbon C₁₁₁ and nitrogen N_IV have been completely resolved into six components and the ratio P₁P₂/P₂P₃ found to be 2.47 and 2.33 respectively.

[Abstract for] The Spectrum of Sulpher, SII. One hundred and eighty-three lines are classified in the spectrum of SII. Thirty-three terms of the quartet system and thirty-six of the doublet system are determined and correlated with the electron configurations by means of the Rund theory. The ionisation potential of the SII ion is fixed at 23.3x.1 volts.

Thesis Files