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Type of Document	Dissertation
Author	Ingram, Sydney B.
URN	etd-02282005-085312
Persistent URL	http://resolver.caltech.edu/CaltechETD:etd-02282005-085312
Title	Wave-length standards in the extreme ultraviolet spectra of carbon, nitrogen, oxygen and aluminum, and The spectrum of sulphur SII
Degree	PhD
Option	Physics
Advisory Committee	Advisor Name Title Unknown Committee Chair
Keywords	none
Date of Defense	1928-05-12
Availability	unrestricted
Abstract NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. 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 .0l to .04A by direct comparison with iron standards. pp' groups in carbon C[...] and nitrogen N[...]--pp' Groups of carbon C[...] and nitrogen N[...] have been completely resolved into six components and the ratio [...] found to be 2.47 and 2.33 respectively. 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 [...] volts.
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