Rapid-cycling ReBCO dipole magnet concept for muon acceleration

TL;DR

This paper proposes a rapid-cycling ReBCO dipole magnet concept for muon acceleration, emphasizing its design, hysteresis loss characteristics, and cooling parameters to achieve high ramping rates with minimal power loss.

Contribution

It introduces a novel ReBCO magnet design tailored for rapid muon acceleration, highlighting its linear hysteresis loss scaling and optimized cooling strategies.

Findings

Hysteresis loss scales linearly with magnetic field crossing.

Design achieves 1.7 T magnetic field with minimal power loss.

Cooling parameters are optimized for high ramping speeds.

Abstract

We present a concept of the rapid-cycling 1.7 T ReBCO magnet for 1 to 10 kT/s ramping range as required for muon acceleration in a future muon collider presently under study. This approach is based on the 6 kA CORC-like cable constructed with 12 superconducting ReBCO tapes of 2 mm width. Based on theoretical prediction there is a linear scaling of the ReBCO cable hysteresis loss with the crossing magnetic field possibly generating power loss independent of the magnetic field ramping speed. This feature makes this ReBCO cable suitable for the construction of rapid-cycling magnets. In this work we outline the design of a dipole magnet for 1.7 T gap magnetic field and discuss the helium coolant parameters for the minimal electric power.