Suitability of Different Quench Protection Methods for a 16 T Block-Type Nb3Sn Accelerator Dipole Magnet

Tiina Salmi; Marco Prioli; Antti Stenvall; Janne Ruuskanen; Arjan P. Verweij; Bernhard Auchmann; Vittorio Marinozzi

doi:10.1109/TASC.2017.2651386

Suitability of Different Quench Protection Methods for a 16 T Block-Type Nb₃Sn Accelerator Dipole Magnet

Tiina Salmi, Marco Prioli, Antti Stenvall, Janne Ruuskanen, Arjan P. Verweij, Bernhard Auchmann, Vittorio Marinozzi

Research output: Contribution to journal › Article › Scientific › peer-review

7 Citations (Scopus)

43 Downloads (Pure)

Abstract

Within the future circular collider study, a 100-km long circular hadron collider is being designed for 100 TeV center-of-mass collision energies. The design of the 16 T Nb₃Sn bending dipole magnets is carried out within the EuroCirCol collaboration. Three different type of dipole designs have been developed, each aiming to be as compact as possible, accounting for the design criteria. Quench protection a critical aspect of the magnet design and potentially limits the magnet compactness. The EuroCirCol magnets were designed assuming a protection system with significantly improved efficiency compared to the present LHC dipole protection. In this paper, we consider present state-of-the-art quench protection technologies, such as quench heaters and CLIQ, and apply them into the designed 16 T Block-type dipole. Two different simulation models are used to estimate the magnet hotspot temperature and voltages after a quench and consequently estimate the suitability of the different methods.

Original language	English
Article number	4702305
Journal	IEEE Transactions on Applied Superconductivity
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2017.2651386
Publication status	Published - 1 Jun 2017
Publication type	A1 Journal article-refereed

Keywords

CLIQ
hotspot temperature
quench protection heaters
quench simulation
Superconducting magnets

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2017.2651386

Salmi_ASC2016_paper_Final_090117
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Accepted author manuscript, 525 KB

http://urn.fi/URN:NBN:fi:tty-201712152394

Cite this

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abstract = "Within the future circular collider study, a 100-km long circular hadron collider is being designed for 100 TeV center-of-mass collision energies. The design of the 16 T Nb3Sn bending dipole magnets is carried out within the EuroCirCol collaboration. Three different type of dipole designs have been developed, each aiming to be as compact as possible, accounting for the design criteria. Quench protection a critical aspect of the magnet design and potentially limits the magnet compactness. The EuroCirCol magnets were designed assuming a protection system with significantly improved efficiency compared to the present LHC dipole protection. In this paper, we consider present state-of-the-art quench protection technologies, such as quench heaters and CLIQ, and apply them into the designed 16 T Block-type dipole. Two different simulation models are used to estimate the magnet hotspot temperature and voltages after a quench and consequently estimate the suitability of the different methods.",

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AU - Stenvall, Antti

AU - Ruuskanen, Janne

AU - Verweij, Arjan P.

AU - Auchmann, Bernhard

AU - Marinozzi, Vittorio

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