August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Design and fabrication of a 15 T Nb3Sn accelerator dipole demonstrator

Aug 28, 2017, 5:45 PM
Emerald Room

Emerald Room

Regular 15 minutes Oral Presentation A1 - Superconducting Accelerator Magnets Mon-Af-Or7


Alexander Zlobin (Fermilab)


US Magnet Development Program (MDP) is developing a 15 T Nb3Sn dipole demonstrator for a post-LHC pp Collider. The magnet design is based on 60-mm aperture 4-layer shell-type coils, graded between the inner and outer layers to maximize the magnet performance. An innovative mechanical structure based on aluminum IC-clamps and a thick stainless steel skin was developed to preload brittle Nb3Sn coils and support larger Lorentz forces at high fields. To study mechanical properties of this structure as well as to optimize the magnet assembly and coil pre-load procedures, the structure was assembled with aluminum cylinders serving as “dummy” coils. These cylinders were instrumented with strain gauges to monitor radial and azimuthal and axial stresses during structure pre-loading. This paper describes the design of the 15 T dipole demonstrator, magnet fabrication status, and mechanical model test results.

Submitters Country U.S.A.

Primary authors

Alexander Zlobin (Fermilab) Emanuela Barzi (Fermilab) Shlomo Caspi (Lawrence Berkeley national laboratory USA) Steve Krave (Fermilab) Maxim Martchevskii Igor Novitski (FERMILAB) Daniel Schoerling (CERN) Stoyan Stoynev (FNAL (US)) Justin Carmichael (Fermilab) Charles Orozco (Fermilab) Daniele Turrioni (Fermilab) Gueorgui Velev (FNAL)

Presentation materials