CERN Accelerating science

Article
Title Performance Analysis of HD1: A 16 Tesla Nb$_3$Sn Dipole Magnet
Related titlePerformance analysis of HD1: a 16 Tesla Nb/sub 3/Sn dipole magnet
Author(s) Mattafirri, S (LBNL, Berkeley) ; Bartlett, S E (LBNL, Berkeley) ; Bish, P A (LBNL, Berkeley) ; Caspi, S (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Gourlay, S A (LBNL, Berkeley) ; Hannaford, C R (LBNL, Berkeley) ; Hafalia, A R (LBNL, Berkeley) ; Lau, W G (LBNL, Berkeley) ; Lietzke, A F (LBNL, Berkeley) ; McInturff, A D (LBNL, Berkeley) ; Nyman, M (LBNL, Berkeley) ; Sabbi, G L (LBNL, Berkeley) ; Scanlan, R M (LBNL, Berkeley)
Publication 2005
Number of pages 4
In: IEEE Trans. Appl. Supercond. 15 (2005) 1156-1159
In: Applied Superconductivity Conference: Harnessing the Magic, Jacksonville, FL, USA, 3 - 8 Oct 2004, pp.1156-1159
DOI 10.1109/TASC.2005.849518
Subject category Accelerators and Storage Rings
Accelerator/Facility, Experiment CERN LHC
Project CERN HL-LHC
Abstract The Superconducting Magnet Group at Lawrence Berkeley National Laboratory (LBNL) has been developing technology for high field accelerator magnets from brittle conductors. HD1 is a single bore block dipole magnet using two, double-layer Nb$_3$Sn flat racetrack coils. The magnet was tested in October 2003 and reached a bore peak field of 16 T (94.5% of short sample). The average quench current plateau appeared to be limited by "stick slip" conductor motions. Diagnostics recorded quench origins and preload distributions. Cumulative deformation of the mechanical structure has been observed. Quench velocity in different field regions has been measured and compared with model predictions. The results obtained during the HD1 test are presented and discussed.
Copyright/License U.S. Government work not protected by U.S. copyright.

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