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Structured scintillator for hard x-ray grating interferometry
KTH, School of Information and Communication Technology (ICT), Material Physics, Material Physics, MF.
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2011 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 98, no 17, 171107- p.Article in journal (Refereed) Published
Abstract [en]

Grating interferometry at conventional x-ray tubes improves the quality of radiographies and tomograms by providing phase and scattering contrast data. The main challenge encountered when applying this technique at high photon energies, as required by many applications to obtain sufficient penetration depth, is to maintain a high fringe visibility. In this letter, we report on a substantial improvement in fringe visibility and according improvements in image quality achieved by replacing the absorbing analyzer grating of the interferometer with a structured scintillator grating. This development represents a significant step toward the implementation of this technique in industrial testing and medical applications.

Place, publisher, year, edition, pages
2011. Vol. 98, no 17, 171107- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-34245DOI: 10.1063/1.3583464ISI: 000290046100007ScopusID: 2-s2.0-79955704014OAI: diva2:422573
QC 20110613Available from: 2011-06-13 Created: 2011-05-30 Last updated: 2011-06-13Bibliographically approved

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Sahlholm, AnnaLinnros, Jan
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