Title :
Electro-mechanical behavior of the ATLAS toroids in fault condition
Author :
Foussat, Arnaud ; Abramov, Alexander ; Fegiz, Paolo Luzzatto ; Dudarev, Alexey ; Volpini, Giovanni ; Ten Kate, Herman H J
Author_Institution :
ATLAS Magnet Team, CERN, Geneva, Switzerland
fDate :
6/1/2004 12:00:00 AM
Abstract :
The three toroids magnet in the ATLAS detector provides the magnetic field for the muon detection system. It consists of a barrel toroid and two end cap toroids, which are electrically and magnetically coupled. In order to guarantee a safe operation, the behavior of the toroid support structures have to be verified in fault conditions. The mechanical behavior of the ATLAS magnet system in the equilibrium operating condition has been calculated in the past. In this paper, results of 3D electro-magnetic calculations of unbalanced force distributions under fault conditions are presented and analyzed. In addition, the energy dissipation and acceptable operating ramp rate in the windings are discussed.
Keywords :
fault location; magnetic fields; magnetic forces; muon detection; particle spectrometers; superconducting magnets; windings; 3D electro-magnetic calculations; ATLAS detector; ATLAS magnet system; ATLAS toroids; barrel toroid; electro-mechanical behavior; end cap toroids; energy dissipation; equilibrium operating condition; fault condition; magnetic field; muon detection system; operating ramp rate; quench protection; superconducting toroid; toroid support structures; toroids magnet; unbalanced force distributions; windings; Circuit faults; Conductors; Detectors; Electrical fault detection; Inductance; Solenoids; Superconducting coils; Superconducting magnets; Thermal force; Toroidal magnetic fields; Magnetic field; mechanical behavior; quench protection; short to ground and neighboring turns; superconducting toroid;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.829713
