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An off-axis STIM procedure for precise mass determination and imaging

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Author

Summary, in English

For the precise determination of the local mass density in thin samples analysed at the Lund Nuclear Microprobe, a modified version of off-axis STIM is described. An on-axis/off-axis geometry is used where a thin C-foil, placed behind the sample scatters protons into the particle detector. The advantage of this geometry compared to the off-axis case where particles are directly scattered from the sample into the particle detector is that the energy-loss spectrum acquired is less degraded. A spectral resolution comparable to on-axis STIM is achieved at a beam current high enough to allow for a simultaneous PIXE analysis (50-100 pA). (C) 2004 Elsevier B.V. All rights reserved.

Department/s

Publishing year

2004

Language

English

Pages

988-993

Publication/Series

Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

Volume

219-20

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • PIXE
  • imaging
  • nuclear microprobe
  • mass normalization
  • STIM

Status

Published

Research group

  • Nuclear Microprobe

ISBN/ISSN/Other

  • ISSN: 0168-583X