Characterization of a new large area HPGe X-ray detector for low beam current application

In the new sub-micron beamline at the Lund Nuclear Microprobe facility a special large area HPGe X-ray detector has been installed. It consists of eight 100-mm 2-size detector elements arranged in an annular formation around the beam entrance hole. Different parameters like FWHM, FWTM, peak-to-backg...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 219; pp. 494 - 498
Main Authors Shariff, Asad, Kristiansson, Per, Auzelyte, Vaida, Elfman, Mikael, Malmqvist, Klas G., Nilsson, Christer, Pallon, Jan, Wegdén, Marie
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2004
Subjects
Annular detector
Fysik
HPGe detector
Natural Sciences
Naturvetenskap
Physical Sciences
PIGE
PIXE
Subatomic Physics
Subatomär fysik
PIGE
07.85.Nc
PIXE
07.85.Tt
29.30.Ep
29.30.Kv
Annular detector
HPGe detector
29.40.Wk
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Summary:In the new sub-micron beamline at the Lund Nuclear Microprobe facility a special large area HPGe X-ray detector has been installed. It consists of eight 100-mm 2-size detector elements arranged in an annular formation around the beam entrance hole. Different parameters like FWHM, FWTM, peak-to-background ratio and peak-to-valley ratio for each individual detector element as well as their sum spectra have been investigated. The data handling, i.e. how eight parallel signals are individually stored and summed together, has been discussed. The possibility to use the detector for simultaneous measurement of high and low energy photons, i.e. PIXE combined with PIGE has been demonstrated.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2004.01.109