First experiments on diffraction-enhanced imaging at LNLS

Diffraction‐enhanced images have been obtained using two silicon crystals in a non‐dispersive set‐up at the XRD2 beamline at the Brazilian Synchrotron Light Laboratory (LNLS). A first asymmetrically cut silicon crystal using the (333) reflection vertically expanded the monochromated beam from 1 mm t...

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Bibliographic Details
Published in:Journal of synchrotron radiation 2003-11, Vol.10 (6), p.421-423
Main Authors: Giles, C., Hönnicke, M. G., Lopes, R. T., Rocha, H. S., Gonçalves, O. D., Mazzaro, I., Cusatis, C.
Format: Article
Language:English
Subjects:
Brazil
Cuspid - diagnostic imaging
diffraction-enhanced imaging
Feasibility Studies
Humans
Hysterosalpingography - methods
Lung - diagnostic imaging
phase-contrast imaging
Pilot Projects
Plant Leaves - anatomy & histology
Radiographic Image Enhancement - instrumentation
Radiographic Image Enhancement - methods
Synchrotrons
Trees - anatomy & histology
Tuberculosis, Pulmonary - diagnostic imaging
X-Ray Diffraction - instrumentation
X-Ray Diffraction - methods
X-ray imaging
X-ray optics
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Summary:Diffraction‐enhanced images have been obtained using two silicon crystals in a non‐dispersive set‐up at the XRD2 beamline at the Brazilian Synchrotron Light Laboratory (LNLS). A first asymmetrically cut silicon crystal using the (333) reflection vertically expanded the monochromated beam from 1 mm to 20 mm allowing the imaging of the whole sample without movements. A symmetrically cut Si(333) second crystal was used as a Bragg analyzer. Images of biological samples including human tissue were recorded using a direct‐conversion CCD detector resulting in enhancement of the contrast compared with absorption‐contrast images.
ISSN:1600-5775
0909-0495
1600-5775
DOI:10.1107/S0909049503020144