15–16 Sept 2011
Paul Scherrer Institut, Villigen, Switzerland
Europe/Zurich timezone

X-ray differential phase contrast tomography on a compact industrial micro CT scanner

15 Sept 2011, 13:13
2m
WSLA - Foyer (Paul Scherrer Institut, Villigen, Switzerland)

WSLA - Foyer

Paul Scherrer Institut, Villigen, Switzerland

Board: 12
Poster Poster Session I (Thursday) Poster session I and lunch

Speaker

Mr Thomas Thuering (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland)

Description

Today's industrial X-ray micro computed tomography (µCT) specimen systems allow high resolution 3-D examination of samples in biology or materials science. Up to now, X-ray absorption contrast imaging has been the standard contrast mechanism in these systems. Recent developments showed that phase contrast imaging can lead to significant contrast enhancements [1]. In the past few years, grating interferometry has established itself as a suitable technique for differential phase contrast (DPC) imaging on conventional X-ray tubes [2]. We have developed a new imaging setup based on a grating interferometer and a microfocus X-ray tube. With a uniquely short setup length of 32cm, the setup geometry has been designed for an immediate integration into a commercial SCANCO Medical µCT 100 scanner. As opposed to conventionally used planar shaped gratings, cylindrically bent gratings are used, resolving the problem of a limited field of view [3]. Here we present the first imaging results on the µCT scanner. References: [1] A. Momose et al., Med. Phys, 22 (375-379), 1995 [2] F. Pfeiffer et al., Nature Phys., 2 (258-261), 2006 [3] T. Thüring et al., accepted for Appl. Phys. Lett., 2011

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Imaging

Primary author

Mr Thomas Thuering (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland)

Co-authors

Dr Bernd Pinzer (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland) Dr Christian David (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland) Prof. Marco Stampanoni (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland) Dr Peter Modregger (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland) Mr Simon Rutishauser (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland) Dr Stefan Hämmerle (SCANCO Medical AG, Brüttisellen, Switzerland) Mr Thomas Grund (Karlsruhe Micro Nano Facility, Karlsruhe Institute of Technology, Karlsruhe, Germany) Dr Zhentian Wang (Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland)

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