A triple-source CT system is proposed for micro-scale testing of geological materials. This
study aims at reducing the projection acquisition time by two-thirds compared to a
conventional single-source CT system. The proposed system with different positioning errors
in the source-to-object distance (SOD) was simulated and tested using the Shepp-Logan
phantom model, as well as slices of sand, glass beads, and concrete samples. Furthermore,
the imaging quality of a single-source and the triple-source CT system with different dead …