The ATLAS platform host Friday, June 23, 2017 practical work on the terahertz waves associated with the training “Terahertz applied to non destructive test” organized by PYLA (Bordeaux optics and laser learning center). Three workshops were proposed, the first being a demonstration of terahertz imaging with a continuous wave sustem, a second using a pulse time domain spectroscopy system and finally a last one focused on data processing and tomographic reconstruction problems.