X-ray microtomography (μCT) using interferometric phase contrast

Bonse, Ulrich; Beckmann, Felix; Biermann, Theodor
May 2000
AIP Conference Proceedings;2000, Vol. 507 Issue 1, p69
Academic Journal
Phase-contrast tomography is capable of characterizing organic tissues, e.g. rat trigenimal nerve or brain matter by accurate measurement of mass density P[sub m]. The presently attained accuracy is of the order of 10[sup −3] relative. Aspects of importance for reaching this accuracy are discussed. We found an influence on the phase-measuring interferometer through heating caused by absorption of x-ray photons from the synchrotron radiation beam. Means to avoid this source of error are described.


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