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Soft tissues feature a degree of short-range order, giving rise to diffraction patterns with broader peaks than crystalline materials. For this reason, an X-ray diffraction system (XRD) for characterization of soft tissue has less stringent requirements in terms of momentum transfer resolution than the one aimed at characterizing crystalline materials. We present results on the characterization of two energy-dispersive XRD systems. The first was based on conical collimation at 5.9° and the second was based on linear collimation at varying angles between 2° and 10°. The systems include a CdTe detector and a W-anode X-ray source. The angular resolution was measured as a function of sample thickness and scattering angle. Preliminary results confirm the effectiveness of the method for the characterization of biological tissues, showing insensitivity to small changes in angular acceptance and sample thickness, also showing it is possible to combine scattering data obtained at different angles.
|Divisions :||Faculty of Engineering and Physical Sciences > Physics|
|Additional Information :||NOTICE: this is the author’s version of a work that was accepted for publication in Applied Radiation and Isotopes. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Radiation and Isotopes, 70(7), July 2012, DOI 10.1016/j.apradiso.2012.03.023.|
|Depositing User :||Symplectic Elements|
|Date Deposited :||16 Oct 2012 08:42|
|Last Modified :||23 Sep 2013 19:37|
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