Quench modeling of the ATLAS superconducting toroids

Author

Gavrilin, Andrew V. ; Dudarev, Alexey V. ; Ten Kate, Herman H J

Author_Institution

Nat. High Magnetic Field Lab., Florida State Univ., Tallahassee, FL, USA

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

1693

Lastpage

1696

Abstract

Details of the normal zone propagation and the temperature distribution in the coils of ATLAS toroids under quench are presented. A tailor-made mathematical model and corresponding computer code enable obtainment of computational results for the propagation process over the coils in transverse (turn-to-turn) and longitudinal directions. The slow electromagnetic diffusion into the pure aluminum stabilizer of the toroid´s conductor, as well as the essentially transient heat transfer through inter-turn insulation, is appropriately included in the model. The effect of nonuniform distribution of the magnetic field and the thermal links to the coil casing on the temperature gradients within the coils is analyzed in full

Keywords

accelerator magnets; heat transfer; magnetic fields; superconducting coils; superconducting magnets; temperature distribution; thermal analysis; ATLAS superconducting toroids; computer code; electromagnetic diffusion; inter-turn insulation; longitudinal direction; mathematical model; nonuniform magnetic field distribution; normal zone propagation; particle accelerator magnets; propagation process; quench modeling; superconducting coils; temperature distribution; temperature gradients; transient heat transfer; transverse direction; Aluminum; Conductors; Electromagnetic heating; Electromagnetic propagation; Electromagnetic transients; Heat transfer; Insulation; Mathematical model; Superconducting coils; Temperature distribution;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920108

Filename

920108