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  First results on ion micro-tomography at LIPSION

Rothermel, M., Reinert, T., Andrea, T., & Butz, T. (2010). First results on ion micro-tomography at LIPSION. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 268(11-12), 2001-2005. doi:10.1016/j.nimb.2010.02.117.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-CE1B-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-CE1C-6
Genre: Journal Article

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 Creators:
Rothermel, M.1, Author
Reinert, Tilo1, Author              
Andrea, T.1, Author
Butz, T.1, Author
Affiliations:
1Institute for Experimental Physics II, Department of Nuclear Solid-State Physics, University of Leipzig, Germany, ou_persistent22              

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Free keywords: STIM; PIXE; Tomography
 Abstract: At the nanoprobe LIPSION ion micro-tomography can be used to determine the 3D distribution information of a sample’s mass density and elemental composition. For ion micro-tomography the two analytical techniques scanning transmission ion microscopy tomography (STIM-T) and particle induced X-ray emission tomography (PIXE-T) are combined. The required data are collected in two consecutive series of measurements, during which the sample is rotated by 180°/360° in small steps. Because all ions have to traverse the sample, the upper limit of the sample size is given by the range of the ions in the material. The tomogram is obtained using the discrete image space reconstruction algorithm (DISRA) by Sakellariou (1997) [1]. This algorithm iteratively corrects a sketchy initial tomogram estimated from the experimental reconstruction – obtained by backprojection of filtered projections (BFP) – and an a priori elemental composition. The necessary correction factors are calculated comparing the reconstruction of the experimental data with the reconstruction of simulated data. For the simulated data sets of STIM projections and PIXE maps are computed from the tomogram. These data sets are proceeded with the BFP algorithm to get simulated reconstruction data. Using the DISRA for ion micro-tomography, one can benefit from the high resolution of STIM-T by transferring it to the elemental distribution given by PIXE-T. This article presents first results of this technique applied on a phantom at the LIPSION facility.

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Language(s): eng - English
 Dates: 2010-02-262010-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.nimb.2010.02.117
BibTex Citekey: Rothermel:2010
 Degree: -

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Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
  Abbreviation : NIM B
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 268 (11-12) Sequence Number: - Start / End Page: 2001 - 2005 Identifier: ISSN: 0168-583X
CoNE: https://pure.mpg.de/cone/journals/resource/954925484704