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Identifying subassemblies by ultrasound to prevent fuel handling error in sodium fast reactors First test performed in water

Abstract : Identifying subassemblies by ultrasound is a method that is being considered to prevent handling errors in sodium fast reactors. It is based on the reading of a code (aligned notches) engraved on the subassembly head by an emitting/receiving ultrasonic sensor. This reading is carried out in sodium with high temperature transducers. The resulting one-dimensional C-scan can be likened to a binary code expressing the subassembly type and number. The first test performed in water investigated two parameters: width and depth of the notches. The code remained legible for notches as thin as 1.6 mm wide. The impact of the depth seems minor in the range under investigation.
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K. Paumel, C. Lhuillier. Identifying subassemblies by ultrasound to prevent fuel handling error in sodium fast reactors First test performed in water. ANIMMA 2015 - 4th International Conference on Advancements in Nuclear Instrumentation: Measurement Methods and their Applications, IEEE, Apr 2015, Lisbon, Portugal. ⟨cea-02500821⟩

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