Phenomenology behind superconducting magnets training

30 May 2023, 17:40
1h
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Speaker

Paolo Ferracin (LBNL)

Description

About the lecture:

“Training” represents one of the most studied, analyzed, and debated phenomenon in superconducting magnets. It can be defined as the occurrence of premature quenches at progressively increasing currents during consecutives ramps. When a magnet requires a large number of quenches to reach the operational current, the training campaign can have a significant impact on the cost and time of a test. Therefore, the investigation of the possible causes of training and the identification of mitigation strategies constitute a major effort in superconducting magnet R&D. After a brief introduction of the quench process, the course will present magnet training by introducing the different possible triggering causes, and by describing modeling and measuring techniques aimed at its characterization. During the class, examples of training plots of recent magnets will be shown, and possible solutions currently explored by the magnet community toward the reduction of training quenches will be discussed.

About the speaker:

"In 2011, I joined the CERN Magnets, Superconductors and Cryostats (MSC) Group as a staff working on Nb3Sn superconducting magnets and in 2012 I started leading the development of MQXFB, the Nb3Sn low-β quadrupole magnet for the High Luminosity LHC (HL-LHC) project and the CERN activities of the Nb3Sn dipole magnet FRESCA2. Since February 2020, I am the SMP Program Deputy at LBNL and in 2023 I started leading the LBNL activities for the US Magnet Development Program (MDP)."

Presentation materials