Abstract
Optical fibre sensors are attractive devices that can bring substantial advantages over conventional sensing approaches
for fission Material Testing Reactors (MTRs), such as high accuracy capabilities with limited intrusiveness and the
ability to withstand high temperature. In the framework of the Joint Instrumentation laboratory (JIL), CEA and
SCKCEN have joined their resources to develop, in particular, an OFS prototype with the aim to measure dimensional
changes on nuclear materials irradiated in MTRs.
We briefly present the objectives and the workplan of that project, in which the first phase addressed an analysis of the
different measurement systems considered towards the specific environmental conditions encountered in a fission
reactor. Among them, radiation is responsible for the biggest error source through the density change of silica glass due
to neutron-induced compaction. The analysis has leaded us to focus mainly on an Extrinsic Fabry Perot design based on
low coherence interferometry. As part of the current development, we present the results of table top experiments that
allow appreciating the variation with different parameters of the response, especially the modulation of the signal
returned.
Original language | English |
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Title of host publication | Proc SPIE - Optical Fibre Sensors I |
Place of Publication | United States |
Pages | 700301-700305 |
Volume | 1 |
State | Published - Apr 2008 |
Event | Photonic Europe - SPIE, strasbourg Duration: 11 Apr 2008 → 11 Apr 2008 |
Conference
Conference | Photonic Europe |
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Country/Territory | France |
City | strasbourg |
Period | 2008-04-11 → 2008-04-11 |