CERN North Area Multi-Purpose Superconducting Magnet Facility

In the context of EP R&D, CERN is working on conceptual designs for a possible multi-purpose superconducting magnet test beam facility to be used for future detector and electronic device testing. The facility may serve as a replacement of the existing M1 or Morpurgo H8 magnets. The new facility is envisioned to serve all the testing requirements for the next generation of high energy physics particle detectors. Two separate concepts are proposed to satisfy the replacement needs. The magnet will take either the form of a split solenoid, allowing dual use as a dipole or solenoid, or a skateboard tilted racetrack design, allowing dipole function. Both designs allow for at least
$1 \,{\mathrm{m}^{\mathrm{3}}}$
testing volume and a magnetic field up to 4-T. It is envisioned to use Niobium Titanium Rutherford cables with a Nickel-Aluminium stabiliser. The operation temperature will be 4.5 K with two-phase helium cooling. The stray fields are minimised to stay below 12 mT at a distance of 5 m from the central point.