X-ray micro-computed tomography imaging was conducted on a sintered bauxite proppant sample (see Methods). We obtain both real tomographic (reconstruction from fullview) and radiographic images as a reference sample (i.e., real sample) for evaluating re- (1) synthetic data with regular spheres and (2) synthetic data with irregular spheres (nonsmooth). The first type of dataset is randomly packed identical spherical particles with 600 µm diameter in a 3 mm inner diameter tube (i.e., artificial sphere sample). The second dataset is randomly packed mono-dispersed particles in a 3.95 mm inner diameter tube. The irregular spheres more closely resemble the real bauxite materials (e.g. ceramic proppant) used in the experimental tomography imaging experiment.