Speaker
Description
About the lecture:
This course is dedicated to the use of fiber optic sensors (FOS) as novel quench detection systems in superconducting coils. The various existing techniques (Fiber Bragg Grating, Rayleigh scaterring, etc...) will be presented together with their different working principles. A focus will be made on Fiber Bragg Grating technology giving the details on the constituve equation describing the behavior of the sensor. Methods to increase the sensitivity of the sensor at cryogenics temperature will be also presented. The neccessary hardware will be exposed with their technical specification and practical examples will be given.
About the speaker:
Hugo Bajas have done is PhD with ITER and CEA on the mechanical optimization of Nb3Sn cable-in-conduit conductor with his design now use for the Central Solenoid conductor. He then worked at CERN as fellow then staff during 11 years on HL-LHC magnet testing in the Test Facility Section. He is now part of the Swiss Plasma Center at EPFL and work on fusion conductor design and testing. He is also in charge of the fiber optic development for quench detection.
