There are CT machines at airports: https://petapixel.com/2019/10/21/beware-new-3d-airport-scanners-will-destroy-your-camera-film/ https://petapixel.com/2019/10/

There are CT machines at airports: https://petapixel.com/2019/10/21/beware-new-3d-airport-scanners-will-destroy-your-camera-film/ https://petapixel.com/2019/10/21/beware-new-3d-airport-scann... Technically, one can also get a (simple) 3D model of something with 'linear tomography', e.g. when the 'sample' is moved under the x-ray source, which happens in classic baggage scanners.