Directional x-ray dark-field imaging

We introduce a novel x-ray imaging approach that yields information about the local texture of structures smaller than the image pixel resolution inside an object. The approach is based on a recently developed x-ray dark-field imaging technique, using scattering from sub-micron structures in the sample. We show that the method can be used to determine the local angle and degree of orientation of bone, and fibers in a leaf. As the method is based on the use of a conventional x-ray tube we believe that it can have a great impact on medical diagnostics and non-destructive testing applications.

[1]  B. Schmitt,et al.  Protein crystallography with the PILATUS 1M detector at the Swiss Light Source , 2004 .

[2]  Paola Coan,et al.  A method to extract quantitative information in analyzer-based x-ray phase contrast imaging , 2003 .

[3]  Franz Pfeiffer,et al.  Phase contrast X‐ray imaging of large samples using an incoherent laboratory source , 2007 .

[4]  Franz Pfeiffer,et al.  Hard X-ray phase-contrast imaging with the Compact Light Source based on inverse Compton X-rays. , 2009, Journal of synchrotron radiation.

[5]  O. Bunk,et al.  X-ray imaging with the PILATUS 100k detector. , 2008, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[6]  Franz Pfeiffer,et al.  X-ray dark-field and phase-contrast imaging using a grating interferometer , 2009 .

[7]  Y. Kagoshima,et al.  Scanning hard X-ray microscope with tantalum phase zone plate at the Hyogo-BL (BL24XU) of SPring-8 , 2001 .

[8]  P. Basser,et al.  MR diffusion tensor spectroscopy and imaging. , 1994, Biophysical journal.

[9]  A. Mozzanica,et al.  Characterization and Calibration of PILATUS Detectors , 2009, IEEE Transactions on Nuclear Science.

[10]  Yoshio Suzuki,et al.  Dark‐field imaging in hard x‐ray scanning microscopy , 1995 .

[11]  H Toyokawa,et al.  The PILATUS 1M detector. , 2006, Journal of synchrotron radiation.

[12]  O. Bunk,et al.  Hard-X-ray dark-field imaging using a grating interferometer. , 2008, Nature materials.

[13]  Franz Pfeiffer,et al.  Fabrication of diffraction gratings for hard X-ray phase contrast imaging , 2007 .

[14]  D. Dreossi,et al.  Preliminary study on extremely small angle x-ray scatter imaging with synchrotron radiation. , 2002, Physics in medicine and biology.

[15]  O. Bunk,et al.  Phase retrieval and differential phase-contrast imaging with low-brilliance X-ray sources , 2006 .

[16]  Gabrielle G. Long,et al.  X-ray imaging with ultra-small-angle X-ray scattering as a contrast mechanism , 2004 .

[17]  A. Alexander,et al.  Diffusion tensor imaging of the brain , 2007, Neurotherapeutics.

[18]  Hiroshi Sugiyama,et al.  Articular cartilage depicted at optimized angular position of Laue angular analyzer by X-ray dark-field imaging. , 2006, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[19]  Hiroshi Sugiyama,et al.  Evaluation of X-ray dark-field imaging in visualization of nearly clinical articular cartilage , 2005 .

[20]  Dark-field imaging is demonstrated with a conventional hard-x-ray source , 2008 .