10.14489/td.2026.11.pp.033-040

2026, 11 November

DOI: 10.14489/td.2026.11.pp.033-040

Badalyan V. G.
ON THE EVALUATION OF THE RESULTS OF RADIOGRAPHIC CONTROL
(pp. 33-40)

Abstract. An important aspect of assessing the reliability of testing results obtained using non-destructive testing methods and tools is the need for probabilistic analysis of the obtained results. ROC analysis and the construction of POD curves for flaws detected during testing are often used for this purpose. This paper demonstrates the usefulness of ROC analysis for assessing the performance of radiographic testing laboratories. The study was conducted using testing data from nine laboratories on four test specimens containing 11 planar flaws (lack of fusion, cracks) and 22 volumetric flaws. It is shown that ROC analysis allows each laboratory to evaluate the effectiveness of flaw detection and interpretation. ROC-diagrams for planar and volumetric flaws and PoD-curves for planar flaws are constructed.

Keywords: testing reliability, radiographic testing, ROC analysis, PoD curves.

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V. G. Badalyan (Co Ltd «Scientific Production Center of Nondestructive Ultrasonic Testing «ECHO+», Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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DOI: 10.14489/td.2026.11.pp.033-040

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