Radiographic NDT Inspection & Testing of Welds

Radiographic Testing, one of our core areas of expertise, calls for using x-rays or gamma radiography to perform a full volumetric inspection to validate the integrity of welds and other components. Radiography is one of the oldest and most widely used non-destructive testing methods.

In most cases, radiographic NDT inspection is used for the testing of welds on pipelines, pressure vessels, piping, storage containers, and structures. JANX’s qualified radiographers interpret radiographs to applicable codes and standards such as API, ASME, and AWS while complying with required customer specifications.

JANX regularly provides high-production weld inspection services on major pipeline construction projects using both Real-Time Radiography and Conventional Film Radiography services, including internal crawlers.

Radiography is performed in accordance with applicable NRC, agreement states, or jurisdictional requirements.

Available radiographic equipment includes:

  • Gamma Sources – Iridium 192, Selenium 75, and Cobalt 60
  • External X-ray Tubes – 150kV to 300kV and can be used for various applications.
  • Internal X-ray Crawlers – 100kV to 300kV with pipe diameter ranges of 6” to 56”

JANX utilizes a wide range of radiographic techniques including:


  • Provides a permanent record: Ensure compliance with codes and standards
  • Allows for full volumetric inspection: Allows customers to make informed decisions about weld or component integrity.
  • High probability of detection: Can detect porosity, inclusions, cracks, and voids in the interior of welds.
  • Provides accurate location of defects: Customers can quickly proceed with repairs, avoiding costly project slowdowns.

We are there when you need us

Because we’re equipped to mobilize radiographic testing services across the United States, our customers can get their inspections done whenever and wherever they need them. That includes pipeline operators working in remote environments or extreme conditions. Our technology and more than 35 years of experience mean customers can rely on us for thorough, detailed, and rapid inspection results.

Gamma Radiography

We have the equipment and expertise to provide mobile gamma radiography inspections and weld evaluations in a wide range of settings, from powerhouses, pipeline systems to structural steel construction and refinery tanks.

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Computed Radiography (CR)

A digital image acquisition and processing system for radiography that uses computers and laser technology. By converting transmitted x-rays into light, using a solid-state imaging device such as a photostimulable phosphor plate, and recovering and processing the image using a digital computer.

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Real-Time Radiography (Digital RTR)

Digital Radiography (DR) is considered an advanced radiographic technique. JANX uses the state of the art RTD Rayscan real-time digital radiographic (RTR) system.

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