Polycapillary based μxRF station for 3D colour tomography

D. Hampai, Yu M. Cherepennikov, A. Liedl, G. Cappuccio, E. Capitolo, M. Iannarelli, C. Azzutti, Yu P. Gladkikh, A. Marcelli, S. B. Dabagov

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The "Rainbow X-Ray" (RXR) experimental station at XLab Frascati of the Frascati's National Laboratories (LNF) INFN is a dedicated station for X-ray fluorescence studies based on the use of polycapillary lenses in a confocal geometry. The flexible RXR layout allows investigating specimens of the dimensions ranging from several millimeters up to half meter and weighting up to several tens of kilograms. Compared to similar existing XRF stations, apart of the possibility for investigating large samples, the main advantage of this equipment is the detection system with two spectrometers optimized to work separately at high and at low X-ray energies. The confocal geometry combined with a 3-axes fine motion system makes possible 3D μXRF elemental tomographic acquisitions (colour tomography). At present this station in operation at high XRF energies is used for cultural heritage and geological applications. We present and discuss here the analytical performances of this experimental station pointing out the advantages in different application areas.

Original languageEnglish
Article numberC04024
JournalJournal of Instrumentation
Issue number4
Publication statusPublished - 20 Apr 2018


  • Computerized Tomography (CT) and Computed Radiography (CR)
  • X-ray fluorescence (XRF) systems

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

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