Modeling of Beam Loss Induced Quenches in the LHC Main Dipole Magnets
The full energy exploitation of the Large Hadron Collider (LHC), a planned increase of the beam energy beyond the present 6.5 TeV, will result in more demanding working conditions for the superconducting dipoles and quadrupoles operating in the machine. It is hence crucial to analyze, understand, and predict the quench levels of these magnets for the required values of current and generated magnetic fields. A one-dimensional multi-strand electro-thermal model has been developed to analyze the effect of beam-losses heat deposition. Critical elements of the model are the ability to capture heat and current distribution among strands, and heat transfer to the superfluid helium bath. The computational model has been benchmarked against experimental values of LHC quench limits measured at 6.5 TeV for the Main Bending dipole magnets.
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Breschi, M., Felcini, E., Granieri, P. P., Bevilacqua, A., Bergonzoni, E., Breccia, F., Galassi, P., Winkler, T., Bottura, L., & Breschi, M. (2019). Modeling of Beam Loss Induced Quenches in the LHC Main Dipole Magnets. IEEE Transactions on Applied Superconductivity, 29(5), 1–7. https://doi.org/10.1109/TASC.2019.2906636
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