Diffraction Enhanced Images
If you use any of these images, please give
Robert. A. Lewis, Christopher. J. Hall, Alan. P. Hufton, Sarah. E.
Pinder, Andrew. J. Evans and Stephen. H. Evans and the team at the SYRMEP
beamline at ELETTRA.
Click on one of the images below to see the images.
These images show
Four types of images are
displayed on the subsequent pages. The images that we have termed conventional were
recorded by placing the object in contact with the detector. The peak of analyzer
images were recorded with the analyzer set for peak reflectivity
and represent absorption contrast images which are almost entirely free of
scattered radiation including scatter at angles as small as 5 micro radians. The apparent absorption and apparent refraction images
were produced using the method described in How DEI Works.
These images are synthesised from 2 images recorded with the
analyser set to the 50% reflectivity point on either side of the rocking
curve where the variation in reflectivity with angle is of opposite slope.
All images were recorded on a
fibre optic coupled CCD having 14 micrometre pixels except for the phantom
images which were recorded on a phosphor imaging system.