Magnetic and Mechanical Analysis of Bi-2212 Rutherford Cable in a Cos-Theta Sub-Scale Dipole Coil

Fuente: arXiv
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Autores principales: D'Agliano, A., Zlobin, A. V., Novitski, I., Turrioni, D., Barzi, E., Donati, S., Giusti, V.
Formato: Preprint
Publicado: 2025
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author D'Agliano, A.
Zlobin, A. V.
Novitski, I.
Turrioni, D.
Barzi, E.
Donati, S.
Giusti, V.
author_facet D'Agliano, A.
Zlobin, A. V.
Novitski, I.
Turrioni, D.
Barzi, E.
Donati, S.
Giusti, V.
contents The U.S. Magnet Development Program (US-MDP) explores high-field accelerator magnets compatible with operational conditions beyond the limits of Nb$_3$Sn technology. The ongoing R\&D High-Temperature Superconductors (HTS) suggests using Bi$_2$Sr$_2$CaCu$_2$O$_{8-x}$ (Bi-2212) as superconducting element. Bi-2212 Rutherford cables maintain a high critical current (I$_C$) when exposed to a large external magnetic field. However, Bi-2212 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 two external layers of Nb$_3$Sn and two 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.
format Preprint
id arxiv_https___arxiv_org_abs_2504_12028
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Magnetic and Mechanical Analysis of Bi-2212 Rutherford Cable in a Cos-Theta Sub-Scale Dipole Coil
D'Agliano, A.
Zlobin, A. V.
Novitski, I.
Turrioni, D.
Barzi, E.
Donati, S.
Giusti, V.
Accelerator Physics
The U.S. Magnet Development Program (US-MDP) explores high-field accelerator magnets compatible with operational conditions beyond the limits of Nb$_3$Sn technology. The ongoing R\&D High-Temperature Superconductors (HTS) suggests using Bi$_2$Sr$_2$CaCu$_2$O$_{8-x}$ (Bi-2212) as superconducting element. Bi-2212 Rutherford cables maintain a high critical current (I$_C$) when exposed to a large external magnetic field. However, Bi-2212 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 two external layers of Nb$_3$Sn and two 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.
title Magnetic and Mechanical Analysis of Bi-2212 Rutherford Cable in a Cos-Theta Sub-Scale Dipole Coil
topic Accelerator Physics
url https://arxiv.org/abs/2504.12028