Quench protection of the Fermilab-built LHC inner triplet quadrupole MQXB

Author

Bossert, R. ; Carcagno, R. ; Chiesa, L. ; Feher, S. ; Kerby, J. ; Lamm, M.J. ; Nobrega, A. ; Orris, D. ; Schlabach, P. ; Tartaglia, M. ; Tompkins, J.C. ; Zlobin, A.V.

Author_Institution

Fermi Nat. Accel. Lab., Batavia, IL, USA

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

133

Lastpage

136

Abstract

High-gradient quadrupoles (MQXB) are being developed at Fermilab within the framework of the US-LHC Accelerator project for the LHC interaction regions. These 5.5-m-long magnets have a single 70-mm aperture and operate in superfluid helium at a peak gradient of 215 T/m. Magnet quench protection is provided by quench heaters installed on the outer surface of the coil. This paper reports the results of quench protection studies on the first full length MQXB prototype (MQXP01). The measurements from these tests as well as results from the 1.9-m-long model magnet program are combined with computer generated quench simulations to predict the MQXB performance under LHC operating conditions.

Keywords

accelerator magnets; colliding beam accelerators; proton accelerators; storage rings; Fermilab-built LHC inner triplet quadrupole; LHC interaction regions; LHC operating conditions; MQXB; computer generated quench simulations; magnet quench protection; quench heaters; superfluid helium; Apertures; Coils; Computational modeling; Helium; Large Hadron Collider; Magnets; Predictive models; Protection; Prototypes; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018368

Filename

1018368