Preliminary Design of Dipole for the Omega Project

An accelerating complex of intensive beams of charged particles (Project Omega) is being developed at IHEP. The main part of this complex is a 3.5 GeV ring accelerator. The basic parameters of the dipole magnet for this ring are: 0.947 T central field in the rectangular region of 272 mm × 150 mm; the field ramp rate is 58 T/s; the injection field is 0.208 T; and the magnet length is 2 m. A comparative analysis of various designs of the dipole magnet is provided in this article for the purpose of selecting the most optimal geometry.