Digital Radiography (RT / DR / RTR)
Typical application
Digital Radiography is commonly applied for:
• Weld inspection in pipes and vessels
• Detection of internal volumetric defects
• New build fabrication inspections
• In-service inspections with controlled access
• Situations where permanent digital records are required
Suitable inspection scenarios
Digital Radiography is commonly applied for:
• Weld inspection in pipes and vessels
• Detection of internal volumetric defects
• New build fabrication inspections
• In-service inspections with controlled access
• Situations where permanent digital records are required
Not suitable / limitations
Digital Radiography is not suitable for:
• Situations where radiation exclusion zones cannot be established
• Very thick sections beyond radiation penetration capability
• Detection of planar defects oriented unfavourably to the beam
• Locations with complex access restrictions
Limitations include:
• Radiation safety requirements
• Setup and exclusion zone management
• Sensitivity depends on defect orientation
• Regulatory and licensing constraints
Safety considerations
Digital Radiography is commonly applied for:
• Weld inspection in pipes and vessels
• Detection of internal volumetric defects
• New build fabrication inspections
• In-service inspections with controlled access
• Situations where permanent digital records are required
Description
Digital Radiography (DR), including Real-Time Radiography (RTR), is a radiographic inspection method that uses ionising radiation to produce digital images of internal features within components and welds. Unlike conventional film radiography, DR provides immediate digital results and easier data storage. DR provides internal volumetric inspection capability.
Pros
Pros Cons
ConsAdvantages in the right context:
• Internal volumetric inspection
• Permanent digital records
• Rapid image acquisition
• Suitable for acceptance inspections
• Widely recognised by codes and standards
Limitations to consider:
• Radiation exposure risks
• Access and exclusion zone constraints
• Limited sensitivity to planar defects
• Higher logistical effort
• Regulatory complexity
Disclaimer
Information on this page is indicative and context-dependent.
Digital Radiography does not replace applicable codes, standards or engineering judgement.
Inspection planning, radiation safety and acceptance decisions remain the responsibility of the asset owner and inspection professional.