PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - DM - Dark Matter
A high temperature superconducting demonstrator coil for a novel toroidal magnetic spectrometer for an astroparticle physics experiment in space
L. Rossi*, M. Dam, W.J. Burger, R. Carpentiero, E. Chesta, R. Iuppa and G. De Rijk
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Pre-published on: July 12, 2021
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Abstract
A magnetic spectrometer determines the signed rigidity of a charged particles by measuring their trajectories in the presence of a magnetic field. High temperature superconducting (HTS) magnets can operate in space without the use of a cryogenic liquid. While HTS magnets have many potential applications in space, including active magnetic radiation shielding, we propose as a first use case a magnetic spectrometer. We present the design of an HTS magnetic spectrometer with a toroidal magnet providing a bending strength of 3 T m. The toroidal magnet is about 2 m in outer diameter, 2 m in height, and requires about 60 km of 12 mm wide ReBCO HTS tape. The magnet operates with an engineering current density of 855 A/mm^2 at a temperature of 20 K and a peak magnetic field of about 12 T. Within the HTS Demonstrator Magnet for Space (HDMS) project, we have designed and are building a small-scale demonstrator coil for the toroidal magnet system. The demonstrator coil consists of two individually built racetrack-like coils enclosed with copper bands that function as current leads and layer jumps. The no-insulation winding method facilitates self-protection against quenches. A lightweight mechanical structure made from aluminium alloy supports the coil.
DOI: https://doi.org/10.22323/1.395.0498
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