Beam tracking phase tomography with laboratory sources

An X-ray phase-contrast laboratory system is presented, based on the beam-tracking method. Beam-tracking relies on creating micro-beamlets of radiation by placing a structured mask before the sample, and analysing them by using a detector with sufficient resolution. The system is used in tomographic...

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Published inJournal of instrumentation Vol. 13; no. 4; p. C04008
Main Authors Vittoria, F.A., Endrizzi, M., Kallon, G.K.N., Hagen, C.K., Diemoz, P.C., Zamir, A., Olivo, A.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 06.04.2018
Subjects
Attenuation coefficients
Laboratories
Refractivity
Tracking
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Summary:An X-ray phase-contrast laboratory system is presented, based on the beam-tracking method. Beam-tracking relies on creating micro-beamlets of radiation by placing a structured mask before the sample, and analysing them by using a detector with sufficient resolution. The system is used in tomographic configuration to measure the three dimensional distribution of the linear attenuation coefficient, difference from unity of the real part of the refractive index, and of the local scattering power of specimens. The complementarity of the three signals is investigated, together with their potential use for material discrimination.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/13/04/C04008