Development of a microtomography system at the Lund sub-micron beamline

Summary, in English

A system for ion beam tomography has been implemented in conjunction with the new sub-micron bearriline at the Lund Nuclear Microprobe laboratory. The first version of the system is dedicated to STIM (scanning transmission ion microscopy) tomography for three-dimensional mass density analysis, but future development will allow also PIXE (particle induced X-ray emission) tomography for elemental analysis of micrometer-sized samples. The PIXE tomography will gain from the 8-element large area HPGe X-ray detector (100 mm(2) for each element) at the low beam currents inherited with a sub-micrometer beam spot size. In this work, the first results are presented together with a detailed description of the developed system, including computer control of the sample rotation. The reconstruction technique, as well as potential tomography applications is briefly discussed.

• Författare: Marie Wegdén; Mikael Elfman; Per Kristiansson; Natalia Arteaga; Vaida Auzelyte; Klas Malmqvist; Charlotta Nilsson; Jan Pallon
• Avdelning/ar: Kärnfysik
• Publiceringsår: 2006
• Språk: Engelska
• Sidor: 756-759
• Publikation/Tidskrift/Serie: Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
• Volym: 249
• Issue: 1-2
• Länkar: http://dx.doi.org/10.1016/j.nimb.2006.03.133
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Ämne: Subatomic Physics
• Nyckelord: tomography; filtered backprojection; nuclear microprobe; STIM
• Status: Published
• Forskningsgrupp: Nuclear Microprobe
• ISBN/ISSN/Övrigt: ISSN: 0168-583X