Operation of a separated-type x-ray interferometer for phase-contrast x-ray imaging
- 1 December 1999
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 70 (12) , 4582-4586
- https://doi.org/10.1063/1.1150116
Abstract
Aiming at large-area phase-contrast x-ray imaging, a separated-type x-rayinterferometer system was designed and developed to produce 25×20 mm interference patterns. The skew-symmetric optical system was adopted because of the feasibility of alignment. The rotation between the separated crystal blocks was controlled within a drift of 0.06 nrad using a feedback positioning system. This interferometer generated a 25×15 mm interference pattern with 0.07 nm synchrotron x-rays. A slice of a rabbit’s kidney was observed, and its tubular structure could be revealed in a measured phase map.Keywords
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