Digital radiography and digital X-ray inspections

Digital X-rays, or radiography, are taken on a digital panel, from which the X-ray image is stored on a computer and is immediately available for evaluation. The inspector evaluates the X-ray and measures the detected impressions with a special software developed for this purpose. Different parts of the X-ray image can be processed and highlighted to reveal in more detail any defects in the specimen.

What you need to know

Kiwa has a variety of radiation sources suitable for inspecting different materials. A conventional X-ray tube is sufficient for most materials, but we also use a battery-powered pulsed X-ray tube for thinner and lower density items such as plastics. For very thick materials or very dense materials, we use isotopes as radiation sources. A digital panel requires less radiation than traditional X-ray imaging on film.

Digital X-ray imaging with DDA equipment also allows in-situ imaging through insulators. In this case, there is no need to run down the equipment to check the condition of the various objects.

Advantages of radiography, i.e. digital X-ray imaging with DDA equipment

• Inspections can be carried out without interrupting normal operations, including through insulation
• Digital X-ray inspection of a wide range of materials such as plastics, composites, wood, aluminium, steel and concrete
• Inspections on pieces of varying thickness and material
• Radiography saves time and is cost-effective
• Safer for the environment than traditional X-ray imaging on film

Typical applications

• Welds
• Plastics and composite materials
• Defect detection in all types of piping systems
• Inspection of insulated pipes during a visit
• Non-standard shaped castings
• Valves, bearings, pressure vessels
• Concrete structures