This techique is used for any research/digitisation that requires to visualize internal structures or as a digitisation tool prior to destructive analysis, for geometric morphometrics, etc. Several different options/manufacturers exist. But mainly it all comes down to the main basic principles. For more details on best practices in µCT scanning please see the following publication: Keklikoglou, K., Faulwetter, S., Chatzinikolaou, E., Wils, P., Brecko, J., Kvaček, J., Metscher, B., & Arvanitidis, C. (2019). Micro-computed tomography for natural history specimens: a handbook of best practice protocols. European Journal of Taxonomy, (522). https://doi.org/10.5852/ejt.2019.522