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MT26 Abstracts, Timetable and Presentations

22–27 Sept 2019
Hyatt Regency Hotel Vancouver
Canada/Pacific timezone

Conference Management

Session

Thu-Af-Or20 - Quench Detection and Protection Systems III

Thu-Af-Or20
26 Sept 2019, 14:00
Regency CD

Regency CD

Conveners

Thu-Af-Or20 - Quench Detection and Protection Systems III

  • Matthias Mentink (CERN)
  • Emmanuele Ravaioli (CERN)

Presentation materials

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  1. 1757. Thu-Af-Or20-01 [Invited]: Quench detection via Rayleigh backscattering interrogated optical fibers
    Dr Sasha Ishmael (Lupine Materials and Technology)
    26/09/2019, 14:00
    Invited Oral Presentation

    The application of high temperature superconductors (HTS) for the generation of high magnetic field is still limited by technical issues like quench detection. The recently developed quench detection technique based on Rayleigh backscattering interrogated optical fibers (RIOF) has shown to provide unprecedented levels of detection and advantages over conventional, voltage-based approaches. In...

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  2. 651. Thu-Af-Or20-02: Modeling and Experimental Validation of Quench Protection Concepts for Canted-Cosine-Theta Type High-Field Magnets
    Jiani Gao (Paul Scherrer Institut)
    26/09/2019, 14:30
    Contributed Oral Presentation

    An innovative high-field superconducting magnet of Canted-Cosine-Theta (CCT) type has been proposed for Future Circular Collider (FCC) 16-T dipole magnet design. The unique mechanical structure intercepts the accumulated forces lowering the stress on the windings: intrinsic stress management in high-field Nb3Sn accelerator magnets. Nevertheless, the former itself also becomes a barrier for...

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  3. 756. Thu-Af-Or20-03: Acoustic sensor array for quench detection of CICC superconducting cables
    Makoto Takayasu (MIT)
    26/09/2019, 14:45
    Contributed Oral Presentation

    HTS (High Temperature Superconductor) tapes such as REBCO (Rare Earth Barium Copper Oxide) are very attractive for various industrial applications of magnets and power-cables, especially for high field, high current superconducting magnets. An implementation of a sensitive quench detection for HTS devices is ungently desired for a safe operation, since normal zone propagations of a HTS...

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  4. 1484. Thu-Af-Or20-04: Quench protection of the 16 T Nb3Sn ERMC and RMM magnets
    Emmanuele Ravaioli (CERN)
    26/09/2019, 15:00
    Contributed Oral Presentation

    CERN launched a high-field magnet R&D program aimed at demonstrating 16 T class superconducting magnets for future circular colliders. The program includes designing, manufacturing, and testing two Nb3Sn magnet models, namely the Enhanced Racetrack Model Coil (ERMC) and the Racetrack Model Magnet (RMM). Both magnets target a magnetic field of 16 T with 10% margin on the load line at 4.2 K. The...

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  5. 1052. Thu-Af-Or20-05: Quench simulations versus experimental observations on the HL-LHC MCBRD canted-cosine-theta short models and prototype magnets
    Matthias Mentink (CERN)
    26/09/2019, 15:30
    Contributed Oral Presentation

    In this paper, quench simulations on the High-Luminosity Large Hadron Collider (HL-LHC) MCBRD canted-cosine-theta (CCT) magnets are compared to experimental observations on the MCBRD short models and prototypes. These magnets feature insulated NbTi/Cu strands wound in aluminium formers, where two concentric coils held in place by the formers produce a dipole field over the bore.

    The magnet...

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