Capacities

University of Oslo – UiO Hub

The UiO hub has four Micro/NanoCT systems with a complementary capacity, entailing a broad range of specimens, from biomedical to industrial.

Bruker Multiscale SkyScan 2211

NANO CT Liebert-2

The new MULTISCALE x-ray nanotomograph SKYSCAN 2211 covers the widest range of object sizes and spatial resolutions in one single instrument. It opens unique possibilities for even more detailed look into the 3D structure of biological tissues and tissue-material interfaces. The resolution can go down to about 100 nm for very small samples. As a multiscale CT, it can also perform scans in objects as large as 200 mm in diameter.

 

NANO CT Liebert-6
Small sample positioned near the x-ray source

 

The system contains “open type” [pumped] X-ray source (20 – 190 kV) with submicron spot size and two X-ray detectors: 3 Mp flat-panel for large objects and 11 Mp cooled CCD for scanning with highest resolution. Automatically variable acquisition geometry and phase-contrast enhancement allow obtaining best possible quality in relatively short scanning time.

For reconstruction, it counts with the world’s fastest hierarchical 3D reconstruction software, which speeds-up reconstruction of object’s internal microstructure 10-100 times compared to traditionally used algorithms or GPU-accelerated reconstruction.

Bruker MicroCT SkyScan 1172

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The SkyScan 1172 scanner is a MicroCT intermediate-high resolution levels (up to 0.8 µm resolution), with an innovative dynamically variable acquisition geometry that provides the shortest scan times possible at any magnification, allowing scans several times faster (obtaining the same or better image quality) compared to micro-CT systems with a fixed source-detector design. The large format cooled x-ray digital camera achieves high spatial resolution without compromising sample size. Fast scan and reconstruction throughput is supported by a computer cluster option, which reconstructs scan datasets in less time than the scan duration in most cases, using several PCs in parallel. Cross section images are generated in a wide range of formats up to 8k x 8k pixels.

Specifications for the Skyscan 1172

  • Detail detectability: < 1 µm;
  • Low contrast resolution (10% MTF): 5 µm;
  • Pixel size at maximum magnification: 0.7 µm to 25 µm;
  • Continuously variable from < 1µm to 25 µm;
  • Gives flexibility to choose based on tissues and user needs. X-ray source: Sealed microfocus X-ray tube, air cooled;
  • Spot size < 5µm @ 4 W;
  • X-ray source: 20-100 kV, 0-250 µA (10 W max).

Variable X-ray energy range from 20-100 kV without a reduction in spot size, which improves contrast for low-density samples (lung, liver, etc). Both camera and sample can be moved closer to source to achieve this variation or alteration in contrast, as needed for the density of the specimen. X-ray detector (camera): 11 Megapixel (4000 x 2300 pixels) 12-bit digital CCD-camera (50 mm field of view). Can be moved closer to specimen to improve resolution. Corrections Thermal drift corrections – a source spot correction

Both NanoCT and MicroCT systems are headed by Dr. Liebert P. Nogueira.

 

Norwegian University of Science and Technology – NTNU Hub

The NTNU hub has four Micro/NanoCT systems, two from Bruker and two custom made systems.

Bruker MicroCT SkyScan 1172

See description above

Bruker MicroCT SkyScan 1176

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The SKYSCAN 1176 is a high performance in vivo micro-CT scanner for preclinical research. The large format 11 megapixel x-ray camera gives an unrivalled combination of resolution, image field size and scan speed – everything that is required in a busy and demanding biomedical research laboratory. Image field width up to 68 mm allows full body mouse and rat scanning and distal limb scanning for big animals, such as rabbits, at pixel sizes of 9, 18 and 35µm. Variable x-ray applied voltage and filters provide scanning flexibility to allow imaging of a wide range of samples from lung tissue to bone with titanium implants. Animal beds for rats and mice are available made of carbon fiber or polystyrene foam. An integrated physiological monitoring subsystem provides breathing and heart-beat gating for proven thoracic image improvement by synchronized acquisition.

The scanner can work in “push button” mode with scanning start/stop and protocol setting from the integrated touch screen. The touch screen has a force sensitive surface allowing normal response to a hand in gloves. The main control rack-mounted workstation is integrated below the scanner.

Custom made MicroCT system

More info soon…

Custom made MicroCT system

More info soon…

University of Bergen – UiB Hub

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Bruker MicroCT SkyScan 1172

Computer Tomography is a non-destructive inspection technique based on differences in absorption/attenuation of X-Rays through the material. The CT-technique provides a 3D-data set of in the sample. The attenuation of X-Rays depends on the atomic number, density and thickness of the material and on the energy of the X-Ray beam. Non-destructive inspection of internal structure, tomodensity analysis, size and volumetric measurements are possible on the 2D as well as the 3D-images. The Skyscan 1172 is a high-resolution desktop X-ray micro-CT system for small samples.

Importantly, the Skyscan 1172 has PC windows based software for 2D/3D image analysis, bone morphometry and realistic visualization, making it accessible for use on your own and laboratory computers. The 1172 model has an 11 Megapixel Xray camera to allow maximum scanning versatility, with an image field width of 50 mm (in dual image camera shift modes). Taller samples can be scanned using oversized scanning mode since the software has the ability to merge images. This feature also allows for automatic batch scanning of a column of smaller samples. We also have an X-Y stage option that allows for 5mm travel in the X-Y direction to improve centering of the object in the field of view. These options are key for our users who will have specimens of varied shapes and sizes. In addition, we have also the Material Testing Stage (MTS) which allows combining micro-CT imaging with tensile and compression testing.

University of South-Eastern Norway – USN Hub

The USN hub has a Scanning Acoustic Microscope (SAM), which is specialized for void detection…