Speaker
Description
In the past few years, there is a growing interest in low-inductance high-field solenoid magnets for high-energy physics experiments including future muon colliders. Advanced Conductor Technologies (ACT) has recently developed CORC$^{®}$ wires wound from REBCO coated conductors with improved bending flexibility that allow for bending to a 20 mm radius and CORC$^{®}$ cables containing up to 96 tapes with very-high current-carrying capability in high-field. This study explores the performance limit of low-inductance high-field solenoids based on start-of-art CORC$^{®}$ conductors. A modeling framework is developed, taking into account current margin, mechanical limits, magnet protection difficulties, and costs. This is applied to examine the feasibility of solenoids with a target field of 35-40 T and a bore size of 50 mm, as series-connected inserts operated with a low-temperature-superconducting outsert or as a stand-alone magnet, and 20-T with a 1.2-m bore envisioned for future muon colliders. We discuss the challenges and limiting factors of the respective cases and provide an overview of the initial designs.
