Quench-Back Management for Fast Decaying Currents in SHMS Superconducting Magnets at Jefferson Lab

Eric Sun,Probir K. Ghoshal,Ruben J. Fair,Steven R. Lassiter,Paul Brindza

IEEE Transactions on Applied Superconductivity（2020）

Cited 5|Views22

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Abstract

The Super High Momentum Spectrometer (SHMS) of Hall C, part of the 12-GeV upgrade at Jefferson Lab, was successfully commissioned in 2017. Early operation showed that fast current dumps decays of the SHMS Q2/Q3 and dipole superconducting magnets triggered quenches, causing some level of operational difficulty. Tests and detailed analyses indicate that nonquench induced fast current decay could res...

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Key words

Superconducting magnets,Magnetomechanical effects,Discharges (electric),Resistors,Cryogenics,Helium,Voltage measurement

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