Human Reliability Assessment method applied to investigate human factors in NDT - The case of the interpretation of radiograms in the French nuclear sector

Justin Larouzée (), Etienne Martin and Pierre Calmon ()
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Justin Larouzée: CRC - Centre de recherche sur les Risques et les Crises - Mines Paris - PSL (École nationale supérieure des mines de Paris) - PSL - Université Paris Sciences et Lettres
Etienne Martin: EDF - EDF
Pierre Calmon: LEMA (CEA, LIST) - Laboratoire architecture Electronique, Modélisation et Analyse de données (CEA, LIST) - DIN (CEA, LIST) - Département d'instrumentation Numérique (CEA, LIST) - LIST (CEA) - Laboratoire d'Intégration des Systèmes et des Technologies - DRT (CEA) - Direction de Recherche Technologique (CEA) - CEA - Commissariat à l'énergie atomique et aux énergies alternatives - Université Paris-Saclay

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Abstract: This communication reports on a study carried out in the context of the collaborative FOEHN project (Human and Organizational Factors in Non-Destructive Evaluation) supported by the French National Research Agency. The motivation of this project comes from the observation that human and Organizational factors (HOF) are not sufficiently considered by the NDT community. Its goal is to analyse and model the influence of the HOF on selected cases of study in the perspective of a better evaluation of the performance of inspections. The communication is focused on a radiographic test (RT) case of study in which it appeared that several successive inspections had failed to detect an existing in-service defect. The analysis and modelling of HOF related to interpretation of films has been achieved in the framework of the CREAM (Cognitive and Reliability and Error Analysis Method). A survey has been conducted during the training and the maintaining of the proficiency of NDT (Non Destructive Testing) operators. This was followed by a non-participant observation of operators on site and several individual interviews including a sample of people covering the main organizational and hierarchical roles (eg. project management, management, operations, invigilation). The exchange with the HOF experts resulted in a hierarchical analysis of "radiogram interpretation" tasks (31 sub-tasks) and a list of contextual and organizational factors that may affect the performance of interpretation of films by the operator. From such a description the CREAM method allows to determine critical tasks and probability of "errors" linked to a limited set of "Common Performance Conditions" (CPC). The first conclusions of this study are that the model CREAM seems well-adapted to the estimation of the impact of HOF on NDT performances. The next phases should be to apply it to other tasks (here only radiograph interpretation) and techniques. The expected benefit of this study is to provide tools for the evaluation and optimisation of NDT implementation.

Keywords: Nuclear Power Plant; Inspection; Radiography; Human Organisational Factors (HOF); Cognitive and Reliability and Error Analysis Method (CREAM); Non-Destructive testing; defect; reliability; signal processing (search for similar items in EconPapers)
Date: 2023-06-27
New Economics Papers: this item is included in nep-ene and nep-ppm
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Published in Internatonal conference Non-Destructive Examination (NDE) in Nuclear, Sustainable Nuclear Energy Technology Platorm (SNETP), Jun 2023, Sheffield - UK, United Kingdom. ⟨10.58286/28268⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-04249459

DOI: 10.58286/28268

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