“…This means that not only the cable insulation, but also heat removal through the coil structure needs to be optimized. Thermal analyses and optimization of the ground insulation, mid-plane area, annular space and collar laminations are performed to improve removal of steady state heat losses [6][7][8]. The solutions proposed imply slight but essential modifications in the coil windings and structure of the magnet, such that the effective cross-section of the helium-filled channels towards the heat sink becomes as large as possible.…”