Conceptual design of the ATLAS thin superconducting solenoid magnet

A thin superconducting solenoid has been designed to be installed into one of the major colliding particle detecting facilities, ATLAS, for LHC (Large Hadron Collider) project at CERN. The thin solenoidal coil wound with stiffened aluminum stabilized superconductor is indirectly cooled by forced two-phase helium through one serpentine tube on the outer support cylinder. The coil is installed into a common vacuum vessel with another co-axial cryogenic component, LAr-Cal, to save the wall material to trajectories for particles. Triangle-shape supporting elements on both ends of the coil are newly introduced to reduce a radial thickness of the cryostat.