What is the minimum resolution (voxel size)?

Matsusada Precision offers a comprehensive lineup of micro-CT systems capable of achieving micron-scale (µm) spatial resolution, tailored to meet diverse customer requirements.

The key metric for resolution in CT is "voxel size." A voxel, a combination of the words "volume" and "pixel," is the smallest cubic unit in a 3D dataset--the 3D equivalent of a pixel. The smaller the voxel size, the finer the details that can be resolved in the final image.

Our ability to achieve such high resolutions is a direct result of our world-class, proprietary microfocus X-ray source technology. In X-ray CT, high resolution is achieved by geometrically magnifying the image. This magnification is determined by the ratio of the source-to-object and source-to-detector distances. However, the ultimate achievable resolution is fundamentally limited by the X-ray source's focal spot size. A smaller focal spot is critical because it minimizes the geometric unsharpness (blur) that occurs at high magnifications, resulting in sharper, clearer images.

Of course, the highest possible resolution is not always necessary. For applications where a wider field of view needs to be scanned quickly, or where µm-level detail is not required, the voxel size can be intentionally increased to significantly reduce scan times. As experts in X-ray technology, we can help you find the optimal balance of resolution, scan time, and field of view to meet your specific inspection requirements.

Related FAQ

• What are the maximum sample size and scan area limitations?
• How long does a scan take?