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Following the indications of the European Strategy for Particle Physics update (ESPP), the International Muon Collider Collaboration has been established to explore the viability of a muon collider with a center-of-mass energy of 10 TeV. This attempt presents significant technological developments to fast accelerate and efficiently collide muon beams before they decay if we consider the extremely short muon lifetime of just 2.2 microseconds at rest.
To reduce machine costs and enhance collider luminosity, the superconducting main arc dipole magnets of the collider ring must be both compact and capable of producing a strong, static high magnetic field. Additionally, the coil geometry needs to have wide aperture to accommodate tungsten shield structure that protects the superconducting coil volume from exposure to radiation and heat deposition generated by muon decays. Presently, high temperature superconductors represent the baseline magnets configuration for the 10 TeV collider due to the high performances and high operating temperature requirements considered. To optimize the electromagnetic field quality of the high field dipoles, magnetization of the HTS tape must be considered in the analysis due to the wide tape width.
This work presents the electromagnetic and mechanical design of a cos-theta dipole for the collider ring. In addition, the study focuses on the comparison of fem simulation model performed in COMSOL and analytical model of the magnetization effect of the persistent currents on field quality and hysteretic losses considering also the influence of transport current in the coil conductor.
| What category does your poster fit in? | Collider |
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