The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Mikael Elfman

Researcher

Default user image.

Evaluation of low-energy tailing parameters of a HPGe X-ray detector to be used in GUPIX software library for PIXE analysis

Author

  • Asad Shariff
  • Bengt Martinsson
  • Vaida Auzelyte
  • Mikael Elfman
  • Per Kristiansson
  • Klas Malmqvist
  • Christer Nilsson
  • Jan Pallon
  • Marie WegdĂ©n

Summary, in English

Accurate description of the response function of X-ray detectors is important for quantitative PIXE analysis. For analytical description of low-energy tailing in PIXE spectra, the GUPIX approach was used, i.e. a combination of Hypermate type functions. The low-energy tailing parameters of a low-energy high purity germanium X-ray detector in the region 1.3-9.2 keV was determined by systematic fitting of X-ray spectra from thin MicroMatter standards. Except for the main Gaussian peak and germanium escape peaks, one shelf, one truncated shelf, one exponential function and KMM radiative Auger feature was applied to fit the spectral data collected with this low-energy Ge X-ray detector. The overall trend of different tail parameters shows similar characteristic as those for Si(Li) X-ray detectors used in this energy range, i.e. very strong tailing at low X-ray energies and a rapid fall off with increasing X-ray energy. The fitted parameters, as a function of X-ray energy, were then incorporated into the GUPIX library for PIXE analysis. (C) 2004 Elsevier B.V. All rights reserved.

Department/s

  • Nuclear physics

Publishing year

2004

Language

English

Pages

110-114

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

  • HPGe-detector
  • response function
  • PIXE
  • tailing parameter
  • GUPIX

Status

Published

Research group

  • Aerosol, Nuclear Physics
  • Nuclear Microprobe

ISBN/ISSN/Other

  • ISSN: 0168-583X