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Title: Virtual edge illumination and one dimensional beam tracking for absorption, refraction, and scattering retrieval

We propose two different approaches to retrieve x-ray absorption, refraction, and scattering signals using a one dimensional scan and a high resolution detector. The first method can be easily implemented in existing procedures developed for edge illumination to retrieve absorption and refraction signals, giving comparable image quality while reducing exposure time and delivered dose. The second method tracks the variations of the beam intensity profile on the detector through a multi-Gaussian interpolation, allowing the additional retrieval of the scattering signal.
Authors:
;  [1] ;  [2] ; ;  [1] ; ;  [3] ;  [4] ;  [2]
  1. Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT (United Kingdom)
  2. (United Kingdom)
  3. Diamond Light Source, Harwell Oxford Campus, OX11 0DE Didcot (United Kingdom)
  4. Research Complex at Harwell, Harwell Oxford Campus, OX11 0FA Didcot (United Kingdom)
Publication Date:
OSTI Identifier:
22261962
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 13; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ILLUMINANCE; REFRACTION; SCATTERING; X RADIATION