1 Radiation Physics & Materials
This training module provides a technical deep-dive into the radiation physics and material properties essential for NAS410 Level 1 industrial radiography. Throughout the lesson, we cover the artificial production of isotopes like Iridium-192 and Cobalt-60, the critical impact of specific activity on image sharpness, and the mathematical management of radioactive decay. Viewers will learn a professional workflow for source selection, how to minimize geometric unsharpness (Ug), and how to use decay curves for operational scheduling. By mastering the relationship between radiation energy and material density, technicians can ensure high radiographic sensitivity and contrast in their inspections.