Our Xradia Zeiss VersaXRM-520 creates 3D datasets with a maximum resolution of 600 nm/voxel (smallest voxels = 150nm). Using proprietary interchangeable focusing optics allows users to locate and scan small sub-regions within a specimen as large as 30 cm in height and 30 cm in diameter. This feature is unique among micro-CT devices, which typically have strict limits on the physical size of a specimen. The focusing capability is particularly useful for examining specimens that are too rare or delicate to be sectioned destructively (fossils, museum specimens, exotic materials). 4D/5D+ datasets can be created via repeated scanning of the same specimen (e.g. before/after treatments, temperature changes, pressure changes, etc).
This instrument is used to visualize and measure structues in plants, insects, seeds, fossils, electronic/fluidic devices, material constructs, soft or dense biological tissues, etc. For examples, biomechanics and materials science researchers use this instrument to characterize microscopic cracks within an intact specimen.
Our GE eXplore CT-120 system has the same non-invasive capabilities and is generally used for faster and lower radiation dose/lower resolution scans-- acquiring data with voxels ranging from 25um-100um and an 8cm bore diameter which can accommodate live animals, plants, fossils, etc. In this system the x-ray source and detector rotate around the bore so that the specimen can remain stationary. Oboard anesthesia and cardiac and respiratory gating are available for live animals. Appropriate specimen and studies include: live vertebrate and invertebrate animals (e.g. during/after a treatment, at various stages of developmental morphogenesis, etc), insects, plants, fossils, electronics, and materials.
Users who write papers/manuscipts are encouraged to help us by adding the following to the acknowledgement section:
For users of the ZEISS-Xradia Versa 520:
Imaging data was acquired through the Cornell University Biotechnology Resource Center, with NIH 1S10OD012287 funding for the ZEISS-Xradia Versa 520 X-ray Microscope.
For users of the GE CT-120:
Imaging data was acquired through the Cornell University Biotechnology Resource Center.