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

[摘要]

[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.

[发布机构] University:California Institute of Technology;Department:Physics, Mathematics and Astronomy

[关键词] Physics