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Home » Authors » R.R. Petrie

Articles by R.R. Petrie

Radiographic Testing

Human Factors Affecting Disagreements Among Interpreters

In the second part of a two-part series, we look at factors affecting probability of detection.
R.R. Petrie Charles J. Hellier
November 1, 2016

Radiographic testing (RT) techniques should be developed to achieve the highest image quality level achievable. 


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flaw detection

Variances and Human Factors in Radiographic Image Interpretation

As conventional film radiographic testing continues transitioning to the digital or computed RT process, the POD method of analysis is likely to improve significantly.
Charles J. Hellier R.R. Petrie
June 1, 2016

All Nondestructive Evaluation (NDE) or examination methods comprise the following steps: the search for, and detection of the discontinuities, the indication or recording or signal–processing of those detected discontinuities, and the human interpretation of that indication, record or signal.


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