Applied Physics B

, Volume 89, Issue 1, pp 99–106 | Cite as

Measurement of number density of lead and thallium see-through hollow cathode discharges with a high resolution Fabry–Pérot spectrometer and by conventional atomic absorption

  • N. Taylor
  • N. Omenetto
  • B.W. Smith
  • J.D. Winefordner


A see-through hollow cathode lamp, or galvatron, is investigated. A novel method is presented for the measurement of an atomic absorption profile using a quasi-continuum source created by the combination of two line sources and a high-resolution Fabry–Pérot interferometer coupled to a spectrometer. Number densities are calculated from the resulting absorption profiles by the peak absorption coefficient relationship and compare well with results obtained from high-resolution emission measurements. Number densities are also determined for the lead 3P1 metastable state and thallium 2P1/2o ground state by conventional atomic absorption. A hollow cathode lamp is used as an emission source and is set at a relatively low current to approximate as a line source relative to the galvatron. Due to the relative line widths of the source and absorber, only the lead metastable state results compare to results obtained by saturated fluorescence.


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • N. Taylor
    • 1
  • N. Omenetto
    • 1
  • B.W. Smith
    • 1
  • J.D. Winefordner
    • 1
  1. 1.Department of ChemistryUniversity of FloridaGainesvilleUSA

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