STIM evaluation in GeoPIXE to complement the quantitative dynamic analysis

Jan Pallon, C. Ryan, Natalia Arteaga, Mikael Elfman, Per Kristiansson, Erik Fors, Christer Nilsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

9 Citations (SciVal)

Abstract

The GeoPIXE software for quantitative PIXE trace element imaging and analysis is a well established package for evaluation of characteristic X-ray data for both PIXE and SXRF. For the case of microbeam applications on semi-thick samples knowledge of the local areal density distribution is important for precise quantification. A technique is reported to achieve this using the measurement of beam particle energy loss as it traverses the sample, as in scanning transmission ion microscopy (STIM). New functionality is added to the GeoPIXE code through integration of routines for STIM sorting of event-by-event data to create elemental maps of the mean energy after traversing the sample. Integration of stopping powers for a given sample matrix then permits the measured energy loss to be related to the local areal density. In a further step, this information is used for X-ray absorption corrections made directly to the PIXE analysis results. As a complement, user-written plugins operating on single STIM spectra have been used to compare the estimated areal density from chosen spots with the corresponding values calculated with the new GeoPIXE routines. The additions made to the code allow a more precise quantification to be done on inhomogeneous, semi-thick samples. (C) 2009 Elsevier B.V. All rights reserved.
Original languageEnglish
Title of host publicationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
PublisherElsevier
Pages2080-2084
Volume267
DOIs
Publication statusPublished - 2009
Event11th International Conference on Nuclear Microprobe Technology and Applications/3rd International Workshop on Proton Beam Writing - Debrecen, Hungary
Duration: 2008 Jul 202008 Jul 25

Publication series

Name
Number12-13
Volume267
ISSN (Print)0168-583X

Conference

Conference11th International Conference on Nuclear Microprobe Technology and Applications/3rd International Workshop on Proton Beam Writing
Country/TerritoryHungary
CityDebrecen
Period2008/07/202008/07/25

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)

Subject classification (UKÄ)

  • Subatomic Physics

Keywords

  • STIM
  • Quantification
  • PIXE
  • Semi-thick samples

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