Radiation Resistant Quadrupole Magnet for the Super-FRS at FAIR

The planned new international accelerator facility FAIR (Facility for Antiproton and Ion Research, ) at GSI will provide primary beams of all projectiles up to uranium with energies up to 1.5 GeV/u for nuclear structure physics. The maximum intensities of these projectile beams will be (1-3) 10¹²/s, leading to a maximum beam power of 58 kW. 10-20% of the primary beam will react in a high-power production target at the entrance of the Super-FRS (Super-conducting Fragment Separator, ). The Super-FRS is a large-acceptance two-stage fragment separator which will provide spatially separated isotopic beams of exotic nuclei. The non-reacting primary beam will be dumped at dedicated beam catchers, located at well defined places in the first part of the Super-FRS. The target area as well as the beam dump area is in high fluxes of high-energy particles, mainly neutrons and protons. Since magnetic elements located in these areas have to be reliably operated for the lifetime of the facility (~20 years) their design has to be radiation resistant. Presently we consider building the magnet coils using MIC (Mineral Insulation Cable) technology. In this paper we present radiation issues, magnet specification, and possible magnetic designs of the first quadrupole magnet placed 1 m downstream of the production target