Quantitative analysis of diffraction enhanced images

✍ Scribed by S. Crittell; M. Ibison; K.C. Cheung; R. Hodgson; D. Gould; C. Hall; P.J. Nolan; R.D. Page

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 296 KB
• Volume: 580
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2007.06.110

✦ Synopsis

In a recent preliminary experiment, a test phantom was imaged using Diffraction Enhanced Imaging (DEI). DEI is a synchrotronbased radiographic imaging technique which uses a single energy of X-rays and the fine angular acceptance of Bragg diffraction to separate out the components of the X-ray beam that have undergone different interactions within the sample. The test phantom was imaged using a beam with energy of 14 keV. The techniques used in this experiment meant that two sets of images were produced of the phantom. The first set is composed of refraction and apparent absorption images. The second technique produced an additional ultrasmall angle scattering image. The use of this second method gave more information than the first technique by showing the scattering properties of the phantom components, we intend to study this feature further in future experiments.