Tensile Strain Dependence of Critical Current for RHQ-Nb3Al Wires
Xinzhe Jin, Hidetoshi Oguro, Tatsushi Nakamoto, Satoshi Awaji, Toru, Ogitsu, Kiyosumi Tsuchiya, Akira Yamamoto, Akihiro Kikuchi, and Takao, Takeuchi
TL;DR
This paper investigates how tensile strain affects the critical current in RHQ-Nb3Al superconducting wires, which are crucial for developing high-field accelerator magnets for the LHC upgrade.
Contribution
It provides experimental data on the strain dependence of critical current in RHQ-Nb3Al wires, aiding magnet design for particle accelerators.
Findings
Critical current varies with tensile strain in RHQ-Nb3Al wires
Strain dependence data supports magnet performance optimization
Enhances understanding of superconductor behavior under operational stresses
Abstract
KEK and NIMS have been jointly developing Nb3Al superconducting wire with a rapid heating and quenching (RHQ) method towards high field accelerator magnets in the Large Hadron Collider (LHC) luminosity upgrade. A15-type superconductors such as Nb3Al and Nb3Sn exhibit strain dependence with respect to their critical currents. Therefore, a thorough understanding of strain behavior is necessary for high field accelerator magnet development, which will be critical for the luminosity upgrade of the LHC.
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