Radiograhic testing uses x-rays and gamma rays to "see" into numerous materials of varying sizes and shapes, including lead.

Radiography Testing (RT) is used for a variety of applications but is commonly performed using two different sources of radiation, X-Ray and Gamma ray sources. The choice of radiation sources and their strength depends on a variety of factors including size of the component and the material thickness.

Within the broad group of X-Ray and Gamma ray sources are a variety of camera choices with varying radiation strengths. Gamma sources vary from very low level fluoroscopic units to perform real time corrosion under insulation surveys, to Iridium (Ir192) inspections for thick component testing.

Radiographic Testing (RT)is one of the primary non-destructive test methods in use today. Radiographic Testing usually requires exposing film to x or gamma rays that have penetrated a specimen, processing the exposed film and interpreting the resultant radiograph.

Advantages:

• Can be used with most materials.
• Provides a permanent visual image.
• Reveals the internal nature of the material.
• Discloses fabrication errors.
• Reveals structural discontinuities.