Stability and quench propagation velocities measurements on the ´racetrack´ mock-up of ATLAS toroid coil

Author

Juster, F.-P. ; Deregel, J. ; Hervieu, B. ; Rey, J.-M.

Author_Institution

CEA, Centre d´Etudes Nucleaires de Saclay, Gif-sur-Yvette, France

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

677

Lastpage

680

Abstract

A mock-up of ATLAS toroid coil, which is one of the 3 detectors presently under construction for the future Large Hadron Collider at CERN, had been tested at Saclay. Various experiments have been led to check the validity of important technical options for the magnet. This paper focuses on thermal stability and quench propagation velocities measurements. For a 70/spl times/7 mm/sup 2/ aluminum-stabilized conductor carrying a 20 kA current, a 4-5 joule minimum quench energy and a 20 m/s longitudinal quench propagation velocity were found. We also studied the dependence of those features according to the operating current in the 5-20 kA range.

Keywords

position sensitive particle detectors; superconducting coils; superconducting magnets; 5 to 20 kA; ATLAS detector; Large Hadron Collider; aluminum-stabilized conductor; minimum quench energy; quench propagation velocity; racetrack mock-up; superconducting magnet; thermal stability; toroid coil; Coils; Conductors; Cooling; Inductance; Magnetic field measurement; Pulse measurements; Thermal stability; Toroidal magnetic fields; Velocity measurement;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828324

Filename

828324