Speaker
Description
Within the framework of the International Muon Collider Collaboration (IMCC), a feasibility study is underway to develop the proposed 10 km collider ring, aimed at achieving a center-of-mass energy of 10 TeV. The stringent requirements to maximize luminosity and shield decay products of muons - characterized by only 2.2 μs lifetime at rest - necessitate the design of compact, high-field, and large-aperture superconducting magnets. These ambitious specifications present substantial technological challenges from both physical and engineering perspectives, pointing the importance of using ReBCO high-temperature superconductors (HTS) as the primary conductor material. These operating conditions call for the development and exploration of advanced methodologies to address multiple aspects of the system’s design and operation. Key considerations include cooling strategies, quench protection mechanisms, AC losses mitigation, mechanical structure integrity, and the integration of effective internal shielding. This paper presents a preliminary 2D analysis of dipoles in a block-coil configuration, featuring an innovative stacked cable orientation and a novel end-winding concept. An updated electromagnetic design with a bore field of 16 T in a 140 mm aperture diameter is introduced, accompanied by an analytical estimation of hysteretic losses, accounting for transport current effects. Additionally, a preliminary mechanical design is provided using finite element analysis (FEM) via ANSYS software, employing a stress-management strategy to address the high Lorentz forces.
