Assessment of Training Performance, Degradation and Robustness of Paraffin-Wax Impregnated Nb₃Sn Demonstrator Under High Magnetic Field

Journal Article · 25 February 2024 · IEEE Transactions on Applied Superconductivity

DOI: https://doi.org/10.1109/tasc.2024.3368995 · OSTI ID:2367436

Araujo, D. M.  ^[1]; Auchmann, B.  ^[2]; Brem, A.  ^[1]; Daly, M.  ^[1]; Hug, C. ^[1]; Michlmayr, T.  ^[1]; Amm, K.  ^[3]; Anerella, M. ^[3]; Yahia, A. Ben  ^[3]; Cozzolino, J. ^[3]; Gupta, R.  ^[3]; Joshi, P.  ^[3]; Kumar, M.  ^[3]; Milanese, A.  ^[4]

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1. Paul Scherrer Institute (PSI), Villigen (Switzerland)
2. Paul Scherrer Institute (PSI), Villigen (Switzerland); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
3. Brookhaven National Laboratory (BNL), Upton, NY (United States)
4. European Organization for Nuclear Research (CERN), Geneva (Switzerland)

In the context of high-energy physics, the use of Nb ₃ Sn superconducting magnets as a cost-effective and reliable technology depends on improvements in the following areas: long development and manufacturing cycles, conductor degradation after thermal cycling, long training, as well as a demonstration in accelerator magnets with a beam aperture of the full potential of modern Nb ₃ Sn conductors. In short, performance, robustness, and cost are the three issues to be addressed. The Magnet Development project (MagDev) of the Swiss Accelerator Research and Technology initiative (CHART) at the Paul Scherrer Institute (PSI) aims to contribute to the solutions to each of these issues, re-thinking the manufacturing and design process. Here in our program, every innovation is to be validated by means of a panoply of fast-turnaround tools: from non-powered and powered samples and coils, tested under background field, to low-field subscale magnets and high field short prototypes. This work presents one element in this panoply of R&D vehicles: a stress-managed Nb ₃ Sn coil called BigBOX, impregnated with paraffin wax, and tested, through a collaboration with the Magnet Development Program of the United States (US-MDP), in the background field of Brookhaven National Laboratory (BNL)’s common coils dipole DCC17.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: SC0012704
• OSTI ID: 2367436
• Report Number(s): BNL--225630-2024-JAAM
• Journal Information: IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 5 Vol. 34; ISSN 1051-8223
• Publisher: IEEECopyright Statement
• Country of Publication: United States
• Language: English