MSC Seminars

Canted-Cosine-Theta (CCT) magnets – the ultimate approach to stress managed coils

Name: Canted-Cosine-Theta (CCT) magnets – the ultimate approach to stress managed coils
Start: 2017-03-24T14:00:00+01:00
End: 2017-03-24T15:00:00+01:00
Location: CERN

by Shlomo Caspi (Lawrence Berkeley national laboratory USA)

Friday 24 Mar 2017, 14:00 → 15:00 Europe/Zurich

112/R-028 (CERN)

112/R-028

CERN

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Description

Abstract The design of accelerator magnets over 15T is facing major challenges as magnetic and mechanical limits are fast approaching. With high fields the required use of multilayer thick coils complicates the assembly and drives conductor stress to its limit. To remedy the situation we have considered replacing the inner most two layers of a Cosine-Theta magnet with a Nb3Sn Canted-Cosine-Theta (CCT) insert. In that way spars intercept Lorentz Forces within the insert and the pre-stress of the outer layers could be reduced and better controlled. This talk will review past performance of Nb3Sn magnets at LBNL and report on how the CCT technology is applied to magnets made with Nb3Sn and HTS conductors.