Progress of LHC low-β quadrupole magnets at KEK

Author

Shintomi, T. ; Ajima, Y. ; Burkhardt, E.E. ; Haruyama, Tomiyoshi ; Higashi, N. ; Iida, M. ; Kimura, N. ; Murai, S. ; Nakamoto, T. ; Ogitsu, T. ; Ohhata, H. ; Ohuchi, N. ; Orikasa, A. ; Osaki, O. ; Ruber, R.J.M.Y. ; Sugita, K. ; Tanaka, K. ; Terashima, A.

Author_Institution

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

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

1562

Lastpage

1565

Abstract

Development of the LHC low-β insertion quadrupole magnet has been in progress at KEK since 1995 as a cooperative program between CERN and KEK. Five 1-m short model magnets have been fabricated and three of them have been tested. From the various test results of the first two models, the coil configuration was further optimized to reduce the higher magnetic field harmonic coefficients. The cold test of the third model showed satisfactory performances of the field harmonics. After this R&D work, the authors are at a stage for the fabrication of two prototype magnets which have the same scale as the production magnets. The status of the R&D for the LHC low-beta insertion quadrupole magnet at KEK is described

Keywords

accelerator magnets; colliding beam accelerators; research initiatives; superconducting coils; superconducting magnets; windings; 1 m; CERN; KEK; Large Hadron Collider; R&D; coil configuration; cold test; fabrication; higher magnetic field harmonic coefficients reduction; low-β quadrupole superconducting magnets; production magnets; Apertures; Coils; Design optimization; Large Hadron Collider; Magnetic field measurement; Magnetic fields; Magnets; Performance evaluation; Protection; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920075

Filename

920075