Radiographic Testing (RT): The Complete 2026 Guide — Physics, Equipment, Procedure & Codes

Definitive 5,000-word guide to radiographic testing for welds, castings and pressure equipment. Covers Ir-192 vs Se-75 vs Co-60 source selection, DR/CR vs film, ASME V Article 2, ISO 17636 class A/B, IQI placement, Ug calculation, radiation safety and ALARA.