Energy levels, isotope shifts, and hyperfine splittings from Fourier transform atomic spectra.

Abstract

High resolution Fourier transform spectra of suitable sources, such as hollow cathodes and electrodeless discharge lamps, can yield much accurate data on energy levels, isotope shifts, hyperfine splittings. and other parameters for atoms throughout the periodic table. The great dynamic range and linearity of FT spectra (and the availability of fast computers) allows the use of data reduction techniques generally unusable with more conventional photographic grating spectra. The details of producing atomic Fourier transform spectra can be found in the literature.