Quench protection study of a prototype for the LHC low-beta quadrupole magnets

Author

Nakamoto, Tatsushi ; Burkhardt, Earle E. ; Ogitsu, Toru ; Yamamoto, Akira ; Shintomi, Takakazu ; Tsuchiya, Kiyosumi

Author_Institution

High Energy Accelerator Res. Organ., KEK, Tsukuba, Japan

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

170

Lastpage

173

Abstract

LHC low-beta quadrupole magnets are being developed at KEK as part of the collaboration between CERN and KEK. Based on R&D progress of five 1-m long model magnets, a full-scale 6.7-m long prototype was developed and excitation tests were performed at KEK. A magnet protection scheme for the full-scale magnet is very important in case of the quench because a large stored energy has to be fully dissipated into the coils. The quench protection system which consists of heaters and power supplies was examined in a series of heater tests for the prototype. It was concluded that the quench protection system will protect the production magnet even in the worst quench situation.

Keywords

accelerator magnets; colliding beam accelerators; overvoltage protection; power supplies to apparatus; proton accelerators; storage rings; synchrotrons; LHC; heaters; low-beta quadrupole magnets; power supplies; quench protection; Coils; Collaboration; Large Hadron Collider; Magnets; Performance evaluation; Power supplies; Power system protection; Prototypes; Research and development; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018376

Filename

1018376