Enhanced contrast radiography with channel-cut crystals at the LNLS

M. G. Hönnicke, G. Kellerman, H. S. Rocha, C. Giles, G. Tirao, I. Mazzaro, R. T. Lopes, C. Cusatis
2005 Review of Scientific Instruments  
An analyzer-based x-ray phase contrast imaging ͑PCI͒ setup based on channel-cut crystals at the Laboratorio Nacional de Luz Sincrotron ͑LNLS-Brazilian Synchrotron͒ is presented. The contrast, visibility, signal-to-noise ratio and spatial resolution of the acquired images were characterized. The potential of PCI for enhancing details of different features with the same x-ray attenuation coefficient is exploited together with cross section simulations of the PCIs acquired at different angular
more » ... fferent angular positions on the rocking curve ͑RC͒. The present results show that this setup can be used as a standard PCI setup at the LNLS.
doi:10.1063/1.2018456 fatcat:msi46a4g3fcs7k5qfqmkfsatry