Radiographic Testing

Radiography (RT) Testing

Radiography Testing (RT) is one of the most popular non-destructive testing methods used to detect defects in a wide range of products. It uses x-rays or gamma rays to identify flaws in weld quality, castings, structures, and composites. It is used predominantly in the fabricating and casting industries for quality control, where it reveals faults such as porosity, inclusions, and cracks.

Radiography Testing encompasses a wide range of techniques from film usage to digital, with digital techniques ranging from computed (CR) and direct (DR) to real-time radiography (RTR) and computed tomography (CT). The technique is commonly used on welded parts, castings, forgings, composites and is also used for corrosion mapping and the measurement of wall thickness.

Types of Radiography Testing

There are numerous types of RT techniques including conventional radiography and multiple forms digital radiographic testing.

1. Conventional Radiography

Our radiographic inspection staff are certified to ASNT Central Certification Program (ACCP), PCN (ISO 9712 compliant), EN 4179 and NAS 410. Our Level II and Level III technicians can perform conventional film radiography, a portable method which is capable of revealing the most microscopic cracks in metallic materials.

2. Digital Radiography

We also have the latest digital radiographic equipment where images are displayed directly onto a computer screen and can quickly and easily be shared. Furthermore, the digital images are much higher quality when compared to conventional radiographic images. With the ability to capture highly quality images, the technology can be utilized to identify flaws in a material, foreign object in a system, examine weld repairs, and inspect for corrosion under insulation.

The five most commonly utilized digital radiography techniques in the oil & gas and chemical processing industries are computed radiography, direct radiography, real-time radiography, and computed tomography.

• Computed Radiography (CR)
• Direct Radiography (DR)
• Real-Time Radiography (RTR)
• Close Proximity Radiography (CPR)
• Computed Tomography (CT)

Radiography Testing method which can be performed in the laboratory or on-site on parts and components of varying dimensions. The radiographic technique uses X-rays or gamma rays to penetrate the tested component. The radiation is passed through the part and captured on radiographic film.