Measuring strain at the surface of a structure can help to estimate the dynamical properties of the structure under test. Such a structure can be a fuel assembly of a nuclear reactor consisting of fuel pins. In this paper we demonstrate a method to integrate draw tower gratings (DTGs) in a fuel pin and we subject this pin to conditions close to those encountered in a heavy liquid metal (HLM) reactor. More specifically, we report on the performance of DTGs used as a strain sensor when immersed in HLM during thermal cycles (up to 300 degrees C) for up to 700 hours.
|Title of host publication||23rd International Conference on Optical Fibre Sensors|
|Subtitle of host publication||PROCEEDINGS OF SPIE|
|State||Published - 22 May 2014|
|Event||23rd International Conference on Optical Fibre Sensors - Santander|
Duration: 2 Jun 2014 → 6 Jun 2014
|Conference||23rd International Conference on Optical Fibre Sensors|
|Period||2014-06-02 → 2014-06-06|