Measurement techniques for column interface monitoring in an advanced gas cooled reactor model

Luiza Dihoru*, Olafur Oddbjornsson, Adam J Crewe , Colin Anthony Taylor

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

3 Citations (Scopus)


This work features an important structural engineering project that provides experimental and numerical predictions to support the safety cases of the Advanced Gas-cooled Reactors (AGRs) in the United Kingdom (UK). The AGR core columns must remain vertical within tight tolerances so that the control rods and the fuel stringers have a secure and unimpeded travel in and out the channels. This paper presents the design, development and testing of bespoke techniques for column interface measurements which feed into the channel shape calculations of a quarter size physical model of an AGR core, developed at the University of Bristol (UOB). The results will play a vital part in the characterization of the core’s dynamic behaviour and will feed into the seismic resilience assessments of the AGRs.
Original languageEnglish
Article number111134
Number of pages15
JournalNuclear Engineering and Design
Early online date10 Mar 2021
Publication statusPublished - 1 Jun 2021

Bibliographical note

Funding Information:
The authors would like to thank EDF for financial and technical support. The views expressed in this paper are those of the authors and do not necessarily represent those of EDF.

Publisher Copyright:
© 2021 Elsevier B.V.


  • advanced gas-cooled reactor
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  • neural networks (NN)


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