Minimum Quench Energy of Nb3Sn Wires With High Specific Heat Tape

Barzi, E.; Novitsky, I.; Turrioni, D.; Zlobin, A. V.; Peng, X.; Tomsic, M.

doi:10.1109/tasc.2022.3159774

Minimum Quench Energy of Nb₃Sn Wires With High Specific Heat Tape

Journal Article · Mon Mar 28 00:00:00 EDT 2022 · IEEE Transactions on Applied Superconductivity

DOI:https://doi.org/10.1109/tasc.2022.3159774· OSTI ID:1856014

^[1]; Novitsky, I. ^[1]; ^[1]; ^[1]; Peng, X. ^[2]; Tomsic, M. ^[2]

Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Hyper Tech., Columbus, OH (United States)

A major problem of state-of-the-art Nb3Snaccelerator magnets is their long training due to thermo-mechanical perturbations. Increasing the specific heat, Cp, of the Rutherford cable would reduce and/or eliminate training by limiting the coils temperature rise. This paper studies feasibility of increasing the Cp of Rutherford-type cables by using thin composite Cu/Gd₂O₃ and Cu/Gd₂O₂S tapes produced by HyperTech Research, Inc. The tape can be either wrapped around the cable, placed on the cable wide faces under the insulation, and/or inserted as a core. Wire samples outfitted with these high-Cp ribbons, or tapes, were prepared and tested at FNAL for their Minimum Quench Energy (MQE). At 90%Ic and 15 T, the average gain of MQE of the Nb₃Sn wire soldered to the Cu/Gd₂O₂S 55 μm thick ribbon was 2.5, and further increased at larger transport currents.

Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1856014

Report Number(s):: FERMILAB-PUB-22-133-TD; THU-P03-710-06; arXiv:2204.05378; oai:inspirehep.net:2056718

Journal Information:: IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 6 Vol. 32; ISSN 1051-8223

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

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75 CONDENSED MATTER PHYSICS
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Minimum quench energy
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critical current

Minimum Quench Energy of Nb3Sn Wires With High Specific Heat Tape

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Minimum Quench Energy of Nb₃Sn Wires With High Specific Heat Tape