Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Beyond filtered backprojection: a reconstruction software package for ion beam microtomography data
Research Areas
  • Physics - Radiation physics,
  • Physics - Experimental nuclear physics,
  • Physics - Instrumentation and data analysis
A new version of the TomoRebuild data reduction software package is presented, for the reconstruction of scanning transmission ion microscopy tomography (STIMT) and particle induced X-ray emission tomography (PIXET) images. First, we present a state of the art of the reconstruction codes available for ion beam microtomography. The algorithm proposed here brings several advantages. It is a portable, multi-platform code, designed in C++ with well-separated classes for easier use and evolution. Data reduction is separated in different steps and the intermediate results may be checked if necessary. Although no additional graphic library or numerical tool is required to run the program as a command line, a user friendly interface was designed in Java, as an ImageJ plugin. All experimental and reconstruction parameters may be entered either through this plugin or directly in text format files. A simple standard format is proposed for the input of experimental data. Optional graphic applications using the ROOT interface may be used separately to display and fit energy spectra. Regarding the reconstruction process, the filtered back projection (FBP) algorithm, already present in the previous version of the code, was optimized so that it is about 10 times as fast. In addition, Maximum Likelihood Expectation Maximization (MLEM) and its accelerated version Ordered Subsets Expectation Maximization (OSEM) algorithms were implemented. A detailed user guide in English is available. A reconstruction example of experimental data from a biological sample is given. It shows the capability of the code to reduce noise in the sinograms and to deal with incomplete data, which puts a new perspective on tomography using low number of projections or limited angle.
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials And Atoms
Impact factor JCR
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  • Autor: C. Michelet-Habchi
  • Autor: Nuria Gordillo Garcia (UPM)
  • Autor: S. Bourret
  • Autor: Ph. Barberet
  • Autor: C. Jovet
  • Autor: Ph. Moretto
  • Autor: H. Seznec
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Instituto de Fusión Nuclear
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)