Modeling of Bi-2212 strand and Rutherford cable in a dipole coil insert

Conference · Wed Aug 07 04:00:00 EDT 2024

DOI:https://doi.org/10.2172/2427353· OSTI ID:2427353

D'Agliano, A. ^[1]; Novitski, I. ^[2]; Zlobin, A. ^[2]; Barzi, E. ^[2]; Turrioni, D. ^[2]; Donati, S. ^[3]; Giusti, V. ^[1]

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1. Pisa U.
2. Fermilab
3. INFN, Pisa

The U.S. Magnet Development Program (US-MDP) explores high-field accelerator magnets compatible with op- erational conditions beyond the limits of Nb3Sn technology. The ongoing R&D High-Temperature Superconductors (HTS) suggests using Bi2Sr2CaCu2O8−x (Bi-2212) as superconducting element. Bi-2212 Rutherford cables maintain a high critical current (IC ) when exposed to a large external magnetic field. However, Bi-2122 exhibits an oversensitive stress-strain response when subject to large Lorentz forces. This paper reports on the magnetic and mechanical analysis of the Bi-2212 cosine-theta insert being developed at Fermilab for a hybrid magnet composed of 2 external layers of Nb3Sn and 2 internal layers of Bi-2212. We performed a FEM analysis of the insert to estimate the HTS stress state in the coil s strands under magnetic and mechanical loads.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 2427353
• Report Number(s): FERMILAB-POSTER-24-0231-TD-V; oai:inspirehep.net:2815727
• Country of Publication: United States
• Language: English