The book consists of four main sections, in which spectral lines are assembled in the order of diminishing wavelength. In the first section the most intense lines are given for each element, and these are arranged according to the degrees of ionization of the atoms. The first column contains the wavelength in angstroms, the second the intensity of the line, and the third the energy of the upper level in electron-volts. The second section gives a summary table of the most intense lines arranged according to wavelength. Here the first column contains the wavelength in angstroms, the second the element to which it belongs and its degree of ionization, and the third the intensity of the line. The tables of the most intense lines in the first and second sections of the book are intended to facilitate rapid orientation to the spectrum under investigation and the detection of the main components and impurities in the plasma.
KeywordsSpectral Line Neutral Atom Summary Table Intense Line Bright Line
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