Radiography Testing

Radiographic Testing involves placing a sensitive radiographic film beneath a specific component, such as a weld or casting, and exposing it to ionizing radiation (either X-ray or Gamma radiation). The radiation passes through the component, exposing the film beneath it, which results in what is known as a latent image. This image is not visible until the film is developed, at which point it becomes a permanent, fixed image. Discontinuities, such as cracks or lack of fusion within the component, can affect the exposure of the film. Radiographic testing can be applied to most materials, including both ferritic and non-ferritic materials, as well as welds, castings, and often composites. This method provides a permanent record of the inspection and offers high sensitivity in detecting defects.

Training Days

Radiographic Testing (RT) – 10-Days Course for Weld Inspection suitable for SNT Level 2 (80 Hours)

Course Outline

General Theory
  • Introduction to Radiographic Testing
  • Principles of radiography and image formation
  • Types of films and processing techniques
  • Fundamental aspects of radiographic quality
  • Radiation safety (as covered in earlier syllabus)
  • Radiation protection measures
  • Exposure factors and their role in testing
  • Vision and lighting considerations
  • Techniques used in radiography
  • Radiographic quality assessment and evaluation
  • Principles of radiation and the nature of ionizing radiation
  • Sources of radiation for radiographic testing
  • Principles of radiographic image formation
  • Radiographic sensitivity and its influence on results
  • Comparison of X-rays and Gamma rays in radiography
  • Radiographic interpretation and defect detection
Product Technology
  • Overview of basic welding processes
  • Identification of fabrication defects
  • Detection of in-service defects
  • Stress relieving techniques and their impact on materials
  • Normalizing processes in material fabrication
Specific Theory
  • Application of Radiographic Testing tailored to the specific requirements of the company, with reference to relevant codes, specifications, and procedures used by the organization, including control checks
Sector-Specific Practicals
  • Extensive hands-on training focusing on practical applications of Radiographic Testing, ensuring competence in real-world scenarios

What are the responsibilities of an individual who is certified to Visual Level 2?

A professional certified to Radiographic Testing(RT) Level 2 has proven their capability to perform Non-Destructive Testing (NDT) in compliance with established UT procedures. Within the scope of competence outlined on their certification, Level 2 personnel may be authorized by their employer to:

  • Select the appropriate Radiographic Testing technique for the test method to be applied.
  • Define the limitations and scope of the Radiographic Testing method's application.
  • Translate NDT codes, standards, specifications, and procedures into practical NDT instructions tailored to the specific working conditions.
  • Set up and verify equipment settings to ensure proper functionality for accurate testing.
  • Perform and supervise Radiographic tests, ensuring procedures are followed correctly.
  • Interpret and evaluate test results based on applicable standards, codes, specifications, or procedures.
  • Prepare detailed written instructions for Radiographic Testing.
  • Carry out and supervise all tasks within or below Level 2 certification.
  • Provide guidance and support to personnel at or below Level 2 certification.
  • Document and report the results of Radiographic Testing, ensuring clarity and accuracy.