Warm magnetic field measurements of prototype low-β quadrupole magnet MQXA for the LHC interaction regions

Author

Hirano, H. ; Ohuchi, N. ; Ajima, Y. ; Ogitsu, T. ; Shintomi, T. ; Tsuchiya, K. ; Yamamoto, A.

Author_Institution

Cryogenics Sci. Center Dept., High Energy Accel. Res. Organ., Tsukuba, Japan

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1663

Lastpage

1666

Abstract

A warm magnetic field measurement system has been designed and constructed for the low-β quadrupole magnet (MQXA) for the LHC interaction regions. The field quality of the first prototype of MQXA has been evaluated at room temperature with this system. According to the field measurement, we found a quite good correlation between the warm and the cold measurements and good performance of the warm measurement system. The magnet twist angle along the magnet axis was also measured with the system, and the obtained results were consistent with the measurement result of mechanical fiducials on the shell surface of the magnet.

Keywords

accelerator magnets; colliding beam accelerators; magnetic field measurement; proton accelerators; storage rings; superconducting magnets; synchrotrons; LHC interaction regions; MQXA; field quality; low-β quadrupole magnet; magnet twist angle; mechanical fiducials; warm magnetic field measurement; Coils; Large Hadron Collider; Magnetic field measurement; Mechanical variables measurement; Production; Prototypes; Scheduling; Superconducting magnets; Temperature measurement; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018726

Filename

1018726