ATLAS Superconducting Toroids and Solenoid

Theoretical and Experimental Investigation of the Ramp Losses in Conductor and Coil Casing of the ATLAS Barrel Toroid Coils

“…The eddy current loss per unit of length , in W/m, for a rectangular conductor with dimensions in a magnetic field with constant parallel to the -side of the conductor (see Fig. 2) is: (1) in is the rate of change of the magnetic field, the resistivity of aluminum. The resistivity of aluminum depends on the magnetic field, especially for fields up to 0.5 T. This means that the eddy current loss power changes during a ramp.…”

“…The Barrel Toroid is already described many times in detail, see e.g. [1]. For clarity, here only a crosssection of the cold mass in the vacuum vessel is shown, see Fig.…”

On-Surface Test of the ATLAS Barrel Toroid Coils: Overview

“…T HE Barrel Toroid [1] of the ATLAS magnet system [2] is currently under final stage of installation in the underground area of the ATLAS experiment at CERN. It consists of eight very large racetrack coils (see Fig.…”

Cold Mass Integration of the ATLAS Barrel Toroid Magnets at CERN

“…T HE BARREL Toroid Magnet is part of the Magnet System of the ATLAS Detector for the LHC [1], [2]. It consists of eight flat superconducting coils extending over a length of 26 meters with an inner bore of 9 meters and an outer diameter of 20 meters and producing a toroidal magnetic field.…”