| Accueil > Transient heat transfer in superfluid helium cooled Nb$_3$Sn superconducting coil samples |
| Published Articles | |
| Title | Transient heat transfer in superfluid helium cooled Nb$_3$Sn superconducting coil samples |
| Author(s) | Xavier, Mário D Grosso (CERN) ; Schundelmeier, Jens (CERN) ; Winkler, Tiemo (CERN) ; Koettig, Torsten (CERN) ; van Weelderen, Rob (CERN) ; Bremer, Johan (CERN) |
| Publication | 2019 |
| Number of pages | 5 |
| In: | IEEE Trans. Appl. Supercond. 29 (2019) 9500105 |
| DOI | 10.1109/TASC.2019.2896414 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN HL-LHC |
| Abstract | An experimental setup is operational at the Central Cryogenics Laboratory of the European Organization for Nuclear Research to measure the cooling mechanisms of superfluid $^4$He (He II) from prepared Rutherford-type superconducting cable stacks to a stagnant He II bath. For novel magnets designed for the so-called high-luminosity large hadron collider upgrade, a segment of a fully impregnated Nb$_3$Sn 11T dipole magnet was measured. A dataset on the thermal behavior is presented, with homogeneous heat inputs of up to approximately 4.8 mW cm$^{-3}$ corresponding to an average steady-state temperature of 3.1 K for the inner layer and 4.0 K for the outer layer when cooled via a 1.9 K He II bath. We discuss the steady state as well as transient behavior observed. |
| Copyright/License | Publication: © 2019-2025 IEEE |