X-ray CT (computed tomography) is a non-destructive 3D imaging technique. The CT images are segmented into different "phases" (materials with different densities) based on their gray levels. By calculating how many voxels are included in each phase, you can obtain volume fractions. This technique is often used to quantify phases in rocks, drug tablets, processed food, or porosity in porous or foam materials. Amorphous and crystalline phases can be also distinguished and analyzed when there is enough density difference between the two states.

Watch an on-demand webinar about X-ray CT data analysis.

Multivitamin tablet volume fractio

Phase Volume Fraction Application Examples

What is micro-CT?

How does it work? How much does it cost? Do I need It? What are the common problems?
To learn everything you need to know about micro-CT, you can start here: What is micro-CT?