The X-ray Science and Instrumentation Team has strengths in the areas
of x-ray phase-contrast imaging, microscopy, micro-tomography & diffraction
with a strong grounding in the theoretical underpinnings of these techniques.
The team has developed phase-contrast imaging instruments including
the X-ray ultra-Microscope (XuM) and the PCX which have been commercialised by spin-off
company XRT Ltd. We have also been involved in design of synchrotron beamlines such
as the power diffraction beamline at Photon Factory. Currently group leader, Steve Wilkins, is a member of the Beamline Advisory Panel
for the Imaging and Medical Therapy beamline at the Australian synchrotron, which
will be based on phase-contrast imaging principles.
The team’s capabilities include:
X-ray phase-contrast imaging,
& microscopy – X-ray phase-contrast imaging can be
used to image from the macroscopic scale down to the microscopic down to 100nm resolution.
Compared to conventional x-ray imaging phase-contrast greatly enhances the visibility
of edges, voids, cracks and boundaries and it enables the x-ray imaging of objects
which don’t absorb x-rays.
X-ray phase-contrast micro-tomography – This enables high-resolution three-dimensional imaging of microscopic
sample. It incorporates the benefits of x-ray phase-contrast imaging.
Phase-retrieval theory and
software for phase-contrast imaging – Phase retrieval
theory is applicable to a range of imaging and diffraction problems. It is essential
for quantitative analysis of phase-contrast images. We have knowledge and experience
in designing and implementing desktop, distributed and web-based solutions for image
processing and quantitative analysis.
Small-Angle X-ray Scattering
(SAXS) – Our SAXS facility is used to analyse fine- and
meso- scale structure in non-crystalline materials such as fibres and biological
samples. We are also developing new methods for characterising membrane proteins
based on SAXS and diffraction methods.
X-ray optics fabrication – We have skills and lithography facilities for fabrication of silicon
monochromators and Fresnel zone plates (x-ray lenses) for x-ray instruments.
Primary ContactDr Tim Gureyev (PhD)
CSIRO Manufacturing and Materials Technology
Phone: 61 3 9545 2702
Fax: 61 3 9544 1128