Quench Protection Study of a 11 T Nb3Sn Model Dipole for the High Luminosity LHC
| Autor: | Jose Ferradas Troitino, Michael Guinchard, Franco Mangiarotti, Susana Izquierdo Bermudez, Luca Bottura, Gerard Willering, Marta Bajko, Giorgio Vallone, Frederic Savary |
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| Rok vydání: | 2019 |
| Předmět: |
Luminosity (scattering theory)
Large Hadron Collider Materials science Nuclear engineering Hot spot (veterinary medicine) Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Conductor Dipole Electromagnetic coil Magnet 0103 physical sciences Electrical and Electronic Engineering 010306 general physics Diode |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 29:1-5 |
| ISSN: | 2378-7074 1051-8223 |
| Popis: | The planned upgrade of the Large Hadron Collider collimation system requires the installation of 11 T Nb 3 Sn dipole magnets in the dispersion suppressor areas. Due to the large stored energy density and the low copper stabilizer section, the quench protection of these magnets is particularly challenging. The baseline protection scheme after installation in the main dipole circuit is based on quench heaters and a bypass diode. The maximum allowable temperature during quench has a primary importance. In one of the latest short model magnets, full protection studies were performed up to a quench integral and hot spot temperatures well beyond the design value in order to understand the limits. Measurements are compared to electro-transient and thermo-mechanical models to evaluate quench propagation, temperature rise in the conductor, and thermal stress due to temperature gradients in the coil and surrounding structure. |
| Databáze: | OpenAIRE |
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