Nikon XTH225 X-ray Computed Tomography (XCT) scanning facility

Our Nikon XCT systems is best suited for larger samples, from a few mm diameter to approximately 20 cm diameter (and less than 30cm in length). With its high-power 225 kV and 320 kV x-ray sources, it can achieve transmission of sample up to approximately 30 mm steel. The system is also suitable for in-situ work, using one of our in-situ rigs.

Typical scan times using vary from 10 to 120 minutes.

The resolution varies from 3 to 120 µm for specimen areas with a diameter of < 10 mm and up to 240 mm diameters respectively. Specimens larger than 240 mm can be analysed by taking linked scans that can then be pieced back together during the reconstruction stage, however this capability is limited by the cabinet size.

Approximate voxel resolution for different sample sizes:

5 mm sample – 3.5 µm voxel

10 mm sample – 7 µm voxel

20 mm sample – 14 µm voxel

50 mm sample – 33 µm voxel

100 mm sample – 65 µm voxel