Radiographic Testing

Radiographic Testing (RT) is one of JANX’s core specialties, utilizing X-rays or gamma radiation to perform full volumetric inspections that verify the integrity of welds and other critical components. As one of the most established and widely adopted non-destructive testing (NDT) methods, RT delivers reliable, comprehensive results across a range of industries.

Our radiographic NDT services are routinely employed to assess welds on pipelines, pressure vessels, piping systems, storage tanks, and structural components. JANX’s certified radiographers interpret radiographs in accordance with industry codes and standards—including API, ASME, and AWS—while aligning with client-specific requirements.

We offer a full suite of high-production weld inspection solutions, including Real-Time Radiography (RTR), Conventional Film Radiography, Computed Radiography (CR), and Digital Radiography (DR).

All radiographic testing is performed in strict compliance with applicable NRC regulations, agreement state requirements, and jurisdictional standards to ensure the highest levels of safety and regulatory adherence.

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.

JANX utilizes a wide range of radiographic techniques including:

• Conventional Radiography (RT)
• Gamma Radiography - a highly versatile inspection method, can also be used in the following ways:
  • Weld Integrity Checks: Used extensively in pipelines, pressure vessels, and structural steel to detect internal flaws such as cracks, porosity, or inclusions.
  • Corrosion and Erosion Monitoring: Assesses wall thickness and internal damage in piping and equipment.
  • Castings and Forgings: Identifies shrinkage, voids, and other hidden defects during manufacturing.
  • Concrete Inspection: Locates embedded objects like rebar, conduits, and post-tension cables within concrete structures.
  • Structural Assessments: Detects internal flaws in steel beams, columns, and other load-bearing elements.
  • Pipeline Inspection: Evaluates girth welds, corrosion under insulation (CUI), and integrity of buried lines.
  • Offshore Structures: Ensures safety and compliance of critical welds on rigs and platforms.
  • Nuclear Facilities: Verifies component integrity in high-radiation environments using isotopes suitable for harsh conditions.
  • Artifact Examination: Non-invasively studies ancient relics, sculptures, and fossils to reveal internal structures, repairs, or restoration work.
  • Component Testing: Inspects turbine blades, composite parts, and safety-critical components for internal defects.
  Our most widely used gamma radiography isotopes are Iridium-192, Enriched Iridium, Selenium-75, and Cobalt-60 isotopes: each has varying penetrating capabilities.
• Computed Radiography (CR) - advanced radiographic technique, utilizes phosphor plates to capture an image of the component being inspected. We examine Computed Radiography images of completed butt welds and components to determine if they are acceptable based on applicable code acceptance criteria. We also evaluate images to locate materials, cracks, voids, and other internal components without the need for disassembly or destruction. CR images can be stored permanently onto hard drives, and these images can also be sent or uploaded for remote viewing at any time in cases where additional opinions are needed.
• Digital Radiography (DR) - an advanced radiographic technique. We use Xpress Flex Plate that has a flexible detector that can be used on full contact with larger circumstances, requires no film or chemicals, and can reduce exposure time by at least 50%. This flexibility means the detector can be shaped around more complex objects eliminating distortion that can come from using a flat DR panel.
• Real-Time Radiography (Digital RTR) - an advanced radiographic technique. We use the state of the art real-time digital radiographic (RTR) system. The amount of radiation required for a digital radiography image is far less than that is required to achieve the same resolution with conventional radiography. Inspections utilizing Real-Time Radiography NDT are completed with a single scan, and the images can be permanently stored and uploaded to a cloud-based server or client specified database for remote auditing capabilities.

Benefits

✔ 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

With the capability to mobilize radiographic testing services across the United States, we ensure that inspections are conducted whenever and wherever our customers need them—even in remote locations and extreme conditions. Whether supporting operators in challenging environments or large-scale infrastructure projects, our advanced technology and over 40 years of industry experience guarantee precise, efficient, and reliable inspection results.