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

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.

• Författare: Jan Pallon; Vaida Auzelyte; Mikael Elfman; M Garmer; Per Kristiansson; Klas Malmqvist; Christer Nilsson; Asad Shariff; Marie Wegdén
• Avdelning/ar: Kärnfysik
• Publiceringsår: 2004
• Språk: Engelska
• Sidor: 988-993
• 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.2004.01.201
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Ämne: Subatomic Physics
• Nyckelord: PIXE; imaging; nuclear microprobe; mass normalization; STIM
• Status: Published
• Forskningsgrupp: Nuclear Microprobe
• ISBN/ISSN/Övrigt: ISSN: 0168-583X