SkyScan 1172
Jukka Jurvelin
2006
SkyScan 1172 micro-CT is a micrometer-level in vitro computed tomography instrument. Image acquiring is based on x-ray attenuation in the imaged object. The system obtains multiple x-ray transmission images of the object from different angular views, as the object rotates on a high-precision stage. From these projection images, cross section images of the object are reconstructed creating a complete 3-D representation of internal microstructure and density. To be able to acquire good quality images, the object should have sufficient density variation. Several morphological 2-D and 3-D parameters, for example pore sizes and anisotropy, can be calculated from the images.
Distribution of paper fibres and filling material.
Micro cracks of broken hip joint prosthesis.
Hyönteisten sisärakenteen ei-destruktiivinen tutkiminen.
Defects of welded seams.
Inner density distribution of rock.
Visual in vitro structural analysis of bone.
Our Micro-CT has three optional stages.
Micro-positioning stage helps to achieve exact positioning of small objects in the middle of the scanning field.
Material testing stage allows the user to combine micro-CT imaging with tensile and compression testing with load up to 220N.
Cooling stage keeps an object at a cooler-than-ambient or sub-zero temperature with 0.5 °C accuracy. The cooling system can keep object temperature up to 50 °C below ambient temperature.
Max scan size: 68 mm (diameter), 70 mm (h)
Max object size: 100 mm (h), 71 mm (diameter)
X-Ray source: 20-100 kV, 0-250 mA (10 W max)
Radiation safety: <1 mSv/h at the instrument surface
Scan time: depends on parameters used, 15 min-several hours.