Isotope ratio measurement with a multicollector detector on the cameca IMS nf

Jan Lorincik, Richard Hervig, Klaus Franzreb, Georges Slodzian, Peter Williams

Research output: Contribution to journalArticle

1 Scopus citations


The ASU IMS 3f secondary ion microanalyzer has been converted to a multiple ion detection mass spectrometer with double focusing for three neighbouring masses. We present preliminary experimental tests of the modified instrument. For that purpose we chose sulphur isotope ratio measurements in three pyrite samples using a small triple Faraday cup assembly as a multicollector. We achieved high mass resolution for off-axis masses and an accuracy of 32 S/ 34 S isotopic ratio of ∼0.2%.

Original languageEnglish (US)
Pages (from-to)7301-7303
Number of pages3
JournalApplied Surface Science
Issue number19
StatePublished - Jul 30 2006



  • Isotopic ratio
  • Multicollector SIMS

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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