Cryostat design and magnetostatic analysis of the 6 GeV superconducting dipole for the CEBAF high momentum spectrometer

The dipole for the Hall C High Momentum Spectrometer is a 470-ton, superconducting, cryostable magnet. With a bend radius of 12.05625 m and an effective length of 5.26 m, it is configured to achieve a 25 degrees bending angle for 6-GeV/c momentum particles over its 42-cm gap at a central field excitation of 1.66 T. The thermal syphon cooled coil consists of three double pancakes of 3-kA copper-stabilized conductor. The cryostat consists of this cryostable coil wound directly onto a stainless steel bobbin with G-10 support cylinders connected to the bobbin to transfer loads produced during energization to the yoke iron, and a stainless steel heat transfer panel cooled by LN/sub 2/ and a stainless steel vacuum vessel. The coil assembly is suspended within the vacuum vessel by eight tensioning support links.