SELF-ABSORPTION IN COPPER HOLLOW CATHODE DISCHARGES: EFFECTS ON SPECTRAL LINE SHAPE AND ABSORPTION SENSITIVITY.

Hugh A. Phillips, Herbert L. Lancaster, M. Bonner Denton, Karoly Rozsa, Pal Apai

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The intensity of the hyperfine doublet of the Cu(I) 324. 8-nm transition was observed as a function of current, fill gas, and fill gas pressure for a new design of hollow cathode lamp incorporating a positive column and an enlarged volume cathode cavity. The intensity ratio of the two components, which reflects the degree of self-absorption, and the flame absorption sensitivity were compared with those of a conventional hollow cathode lamp. Higher intensity, better component ratio, and increased absorption sensitivity were found in the new lamp.

Original languageEnglish (US)
Pages (from-to)572-576
Number of pages5
JournalApplied Spectroscopy
Volume42
Issue number4
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy

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