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Digital Radiography

Although introduced in the early 1980's, digital radiographic techniques have not - until now - been capable of meeting all the technical performance needs of integrity critical industrial applications. Recent improvements in 'front end' technology, electronic data capture and image processing now mean that the benefits of the technique may be fully exploited. These improvements have resulted in a significant shift in interest which has seen manufacturers, operators and industry regulators increasingly committed to the benefits the technology can offer. This is endorsed by the fact that the major applicable codes and standards have recently been amended to encompass the use of digital techniques.

The benefits of the technology, which can be used with conventional x-ray and gamma-ray equipment, include -

• Significant cost reductions by virtue of consumable savings and process efficiencies
• Improved image quality enabling better accuracy and reduced subjectivity
• Indefinite 'shelf life' of non-degradable and non-corruptible 'as recorded' data
• Improved reliability with fewer re- shoots and less 'false calls'
• Safer and more environment friendly process - with no chemical waste
• Readily reproducible copies of 'as recorded' results
• Remote global transmission and viewing of 'as recorded' data
• Pre-programmed test parameters minimise 'human error' during set-up


• Fully compliant in terms of equivalent sensitivity, resolution and definition

Based upon extensive comparative trials done in 2005, NDT Inspection and Testing Limited are market leaders in the use of this technology and are fully committed to its implementation.

The technology is so powerful that it enables us to inspect a part in the UK, manufactured in Asia, to be machined and finished in France and finally assembled in America - whereby all four parties (and more if required) can simultaneously visualise, review and make decisions based upon the 'as recorded' inspection results.

For further information on Digital Radiography, contact Paul Evans