The edge illumination principle was first proposed at Elettra (Italy) in the late nineties, as an alternative method
for achieving high phase sensitivity with a very simple and flexible set-up, and has since been under continuous
development in the radiation physics group at UCL. Edge illumination allows overcoming most of the limitations
of other phase-contrast techniques, enabling their translation into a laboratory environment. It is relatively
insensitive to mechanical and thermal instabilities and it can be adapted to the divergent and polychromatic
beams provided by X-ray tubes. This method has been demonstrated to work efficiently with source sizes up
to 100m, compatible with state-of-the-art mammography sources. Two full prototypes have been built and
are operational at UCL. Recent activity focused on applications such as breast and cartilage imaging, homeland
security and detection of defects in composite materials. New methods such as phase retrieval, tomosynthesis
and computed tomography algorithms are currently being theoretically and experimentally investigated. These
results strongly indicate the technique as an extremely powerful and versatile tool for X-ray imaging in a wide
range of applications.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Endrizzi ; P. C. Diemoz ; M. B. Szafraniec ; C. K. Hagen ; T. P. Millard, et al.
Edge illumination and coded-aperture X-ray phase-contrast imaging: increased sensitivity at synchrotrons and lab-based translations into medicine, biology and materials science
", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 866812 (March 6, 2013); doi:10.1117/12.2007893; http://dx.doi.org/10.1117/12.2007893