Magnetic field characteristics of the low-beta quadrupole magnets, MQXA, for LHC

Author

Ohuchi, Norihito ; Ajima, Yasuo ; Nakamoto, Tatsushi ; Ogitsu, Toru ; Shintomi, Takakazu ; Sugita, Kei ; Tsuchiya, Kiyosumi ; Yamamoto, Akira

Author_Institution

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

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

191

Lastpage

194

Abstract

As a part of the collaboration program between CERN and KEK for the LHC, KEK has developed a superconducting low-beta quadrupole magnet, MQXA. KEK will supply 18 MQXA magnets, and 16 magnets will be installed in total in the four interaction regions. The cold tests of 13 magnets have been completed. Systematic field measurements were performed on these magnets, and these 13 magnets had satisfactory field quality for the requirement of beam optics. This paper describes the magnetic field behavior of the 13 MQXA magnets from the viewpoint of accelerator operation.

Keywords

accelerator magnets; magnetic cooling; magnetic field measurement; production testing; proton accelerators; storage rings; superconducting magnets; synchrotrons; CERN; KEK; LHC interaction regions; Large Hadron Collider; MQXA; accelerator operation; beam optics; cold tests; field quality; low-beta quadrupole magnets; magnetic field measurement; superconducting quadrupole magnet; Coils; Collaboration; Current measurement; Large Hadron Collider; Length measurement; Magnetic field measurement; Magnetic fields; Optical beams; Performance evaluation; Superconducting magnets; LHC interaction region; magnetic field measurements; superconducting magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.829044

Filename

1324768