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Isotope Ratio Measurements in Lead Using Three‐photon One‐colour Resonance Ionization Mass Spectrometry by H. H. Telle; A. L. Telyatnikov; E. D. McNaghton; R. A. Brown; A. McCormick is a Chemistry article available to read on EtoBox.

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## Abstract Resonance effects on measured isotope ratios in lead using three‐photon one‐colour resonance ionization mass spectrometry are discussed. The shape of the ionization signal is considered for the case of a non‐monochromatic laser field. The intensity of the laser radiation is adjusted to be low enough not to cause saturation of the transitions. The variation of the measured isotope ratio as a function of laser frequency is considered. It is shown that the deviation of the measured from the expected isotope ratio, for a Lorentzian laser lineshape equals the ratio of the isotope shift to the laser bandwidth. Unfortunately, the background noise in the experiments makes verification of this behaviour difficult for the isotopes of low abundance.

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Author

H. H. Telle; A. L. Telyatnikov; E. D. McNaghton; R. A. Brown; A. McCormick

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0951-4198)

Published

1993

Language

EN

Field

Chemistry (Physical Sciences)