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Digital radiography – is it for you?

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Digital radiography is becoming more commonplace within the industrial NDT field. It offers several advantages such as defect recognition software, advanced analysis tools, shorter exposure times, and lower energies-and yet many companies are still sceptical about its use. These companies are questioning whether they should wait for the new technology to improve before buying, or invest in the new technology now before being left behind. This paper attempts to answer some of the common objections raised against digital, and to compare the relative merits of analogue (film)radiography against the various types of digital. It also examines some of the new terminology surrounding computed radiography and highlights some of the differences in technical skills required from radiographers and analysts.

Much of the resistance to computed radiography is from radiographers themselves, who are used to using film and developers. Many are not comfortable with the new digital technologies, and are suspicious of the advantages offered by digital image processing. This paper attempts to dispel some of the myths regarding digital radiography, and takes an objective look at the various technologies on the market today.
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Document Type: Research Article

Affiliations: TWI, Granta Park, Great Abington, Cambridge, CB1 6AL.

Publication date: July 1, 2004

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