Training Duration 80 hours (8 days)

Basic Principle – Radiographic Testing (RT)

Radiographic testing can be used to detect internal defects in castings, welds or forgings by exposure the construction to x-ray or gamma ray radiation. Defects are detected by differences in radiation absorption in the material as seen on a shadow graph displayed on photographic film or a fluorescent screen.


This course provides detailed theoretical and practical information on all the commonly encountered Radiographic Testing (RT) techniques. Candidates will have the opportunity to use the various techniques on welds, castings and wrought products.
This course meets the training hour requirements as specified by the American Society of Non-Destructive Testing (ASNT) Recommended Practice documents SNT-TC-1A.

Course Content

• Introduction to Non-destructive Testing and Radiographic Testing (RT)
• Basic Principles Of RT
• Atomic structures
• Properties of X-Rays and Gamma Rays
• Natural and artificial gamma radiation sources
• Generation of X-rays
• Radiographic Film
• Intensifying screens
• Latent Images and Film Processing
• Image Quality Indicators (Penetrameter)
• Exposure factors
• Radiographic Techniques
• Interpretation and Evaluation of Radiographs
• Personnel protection and safety procedures
• Relevant standards
• Extensive hands-on practical training

Pre-requisites for attending this course

ASNT examination the requirements of your company’s written practice must be met. A minimum experience of 840 hours is required in Radiographic testing for certification