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

Summary, in English

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. PINE combined with PIGE has been demonstrated. (C) 2004 Elsevier B.V. All rights reserved.

• Författare: Asad Shariff; Per Kristiansson; Vaida Auzelyte; Mikael Elfman; Klas Malmqvist; Christer Nilsson; Jan Pallon; Marie Wegdén
• Avdelning/ar: Kärnfysik
• Publiceringsår: 2004
• Språk: Engelska
• Sidor: 494-498
• Publikation/Tidskrift/Serie: Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
• Volym: 219-20
• Länkar: http://dx.doi.org/10.1016/j.nimb.2004.01.109
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Ämne: Subatomic Physics
• Nyckelord: PIXE; annular detector; PIGE; HPGe detector
• Status: Published
• Forskningsgrupp: Nuclear Microprobe
• ISBN/ISSN/Övrigt: ISSN: 0168-583X