Ponente
Descripción
Conventional X-ray radiography is the current standard for industrial non-destructive testing of metallic parts. However, some limitations arise due to the low penetration depth of X-rays for certain materials or their thickness. This is the case for metal additive manufacturing, where quality control and internal inspection are critical in most applications. In this paper we report the use of a $^{137}$Cs gamma source ($\sim$180 MBq) and a $^{60}$Co gamma irradiator ($\sim$47 TBq) for gamma radiography and tomography of steel samples from additive manufacturing. A simple experimental device composed of a scintillating screen and a frame-based camera was used to digitally capture the sample images. Internal details were observed with a spatial resolution of 1 -- 3 mm. The same imaging device was adapted and utilized for neutron radiography using thermal neutrons from a particle accelerator with similar results. This demonstrates the potential flexibility of the device for different source types in a portable and cost-effective system for non-destructive tests.
