The Installation and Commissioning of the Advanced Light Source Combined-Function Harmonic Sextupoles for the Low Emittance Upgrade

被引：0

作者：

Madur, A. ^{[1
]}

Arbelaez, D. ^{[1
]}

Bailey, B. ^{[1
]}

Biocca, A. ^{[1
]}

Black, A. ^{[1
]}

Casey, P. ^{[1
]}

Chun, C. ^{[1
]}

Colomb, D. ^{[1
]}

Humphries, D. ^{[1
]}

Li, N. ^{[1
]}

Marks, S. ^{[1
]}

Nishimura, H. ^{[1
]}

Pappas, C. ^{[1
]}

Petermann, K. ^{[1
]}

Prestemon, S. ^{[1
]}

Rawlins, A. ^{[1
]}

Robin, D. ^{[1
]}

Scarvie, T. ^{[1
]}

Schlueter, R. ^{[1
]}

Steier, C. ^{[1
]}

Troy, S. ^{[1
]}

Wan, W. ^{[1
]}

Williams, E. ^{[1
]}

Lixin, Y. ^{[2
]}

Zhou, Q. ^{[2
]}

Jin, J. ^{[2
]}

Zhang, J. ^{[2
]}

Chen, C. ^{[2
]}

Wen, Y. ^{[2
]}

Wu, J. ^{[2
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Shanghai Inst Appl Phys, Shanghai 201203, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2014年 / 24卷 / 03期

关键词：

Combined-function sextupole; hysteresis; magnet installation;

D O I：

10.1109/TASC.2013.2283014

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Advanced Light Source (ALS) is a third-generation light source in operation since 1993. This light source is providing state-of-the-art performance to more than 40 beamlines and their users, due to the upgrades that have been completed over the last few years. The storage ring upgrade project that is developed here will allow the ALS to provide the 40 beamline users with higher photon beam brightness (factor of 2 or 3) by having its storage ring lattice modified. Forty-eight harmonic sextupole magnets with integrated dipole correctors and skew quadrupole coils will be introduced, which will require a level of installation activity not seen at the ALS since its original construction in 1991. Introducing new combined-function magnets in an existing storage ring is a challenge due to the limited space available and a balance had to be found between magnet performance and spatial constraints. After an introduction reviewing the characteristics of the three design families of the 48 combined-function magnets, the magnet fabrication and installation are developed along with analyses based on the magnetic measurements and the ALS storage ring commissioning results.

引用

页数：4

共 11 条

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