Assembly and test of a support structure for 3.6 m long Nb3Sn racetrack coils

被引：10

作者：

Ferracin, P. ^{[1
]}

Ambrosio, G. ^{[2
]}

Anerella, M. ^{[3
]}

Caspi, S. ^{[1
]}

Cheng, D. W. ^{[1
]}

Felice, H.

Hafalia, A. R. ^{[1
]}

Hannaford, C. R. ^{[1
]}

Lietzke, A. F. ^{[1
]}

Lizarazo, J. ^{[1
]}

Muratore, J. ^{[3
]}

Sabbi, G. L. ^{[1
]}

Schmalzle, J. ^{[3
]}

Thomas, R. ^{[3
]}

Wanderer, P. J. ^{[3
]}

机构：

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

[2] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[3] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2008年 / 18卷 / 02期

关键词：

LARP; Nb3Sn; superconducting magnets;

D O I：

10.1109/TASC.2008.922304

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 LHC Accelerator Research Program (LARP) is currently developing 4 m long Nb3Sn quadrupole magnets for a possible upgrade of the LHC Interaction Regions (IR). In order to provide a reliable test bed for the fabrication and test of long Nb3Sn coils, LARP has started the development of the long racetrack magnet LRS01. The magnet is composed of two 3.6 m long racetrack coils contained in a support structure based on an aluminum shell pre-tensioned with water-pressurized bladders and interference keys. For the phase-one test of the assembly procedure and loading operation, the structure was pre-stressed at room temperature and cooled down to 77 K with instrumented, solid aluminum "dummy coils". Mechanical behavior and stress homogeneity were monitored with strain gauges mounted on the shell and the dummy coils. The dummy coils were replaced with reacted and impregnated Nb3Sn coils in a second assembly procedure, followed by cool-down to 4.5 K and powered magnet test. This paper reports on the assembly and loading procedures of the support structure as well as the comparison between strain gauge data and 3-D model predictions.

引用

页码：167 / 170

页数：4

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