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Isotope Ratio Biases in Resonance Ionization Mass Spectroscopy Due to Population Trapping

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Abstract:

Population trapping via hyperfine ground-state coherences is proposed as a potential source of isotope ratio bias in resonance ionization mass spectra with coherent excitation of the first transition. Sample calculations are presented for a model 4-level Doppler-broadened system and qualitatively verified by experimental fluorescence excitation measurements.

Keywords: Mass spectroscopy; Resonance ionization

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702904086588

Affiliations: Oak Ridge National Laboratory, Analytical Chemistry Division, Oak Ridge, Tennessee 37831

Publication date: August 1, 1990

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