Improvement of detection limits of PIXE by substrate signal reduction

S. Beaulieu*, Z. Nejedly, J. L. Campbell, G. C. Edwards, G. M. Dias

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Improvement of detection limits of proton induced x-ray emission (PIXE) by substrate signal reduction was discussed. It was observed that improvement in limits of detection (LOD) was most noticeable for selected elements collected on the smaller stages of the impactor. The results showed that LOD for aerosol samples were improved by approximately 50% after reducing the cross-sectional area of the analytical beam based on results obtained from microscope photographs of aerosols deposits.

Original languageEnglish
Pages (from-to)289-292
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume189
Issue number1-4
DOIs
Publication statusPublished - Apr 2002
Externally publishedYes

Keywords

  • Air quality
  • Cascade impactor
  • Fine aerosol
  • PIXE

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