Test of a NbTi Superconducting Quadrupole Magnet Based on Alternating Helical Windings

Journal Article · Sun Aug 16 04:00:00 EDT 2009 · IEEE Transactions of Applied Superconductivity

DOI:https://doi.org/10.1109/TASC.2009.2017892· OSTI ID:1000347

Caspi, S; Trillaud, F; Godeke, A; Dietderich, D; Ferracin, P; Sabbi, G; Giloux, C; Perez, J G; Karppinen, M

It has been shown that by superposing two solenoid-like thin windings, that are oppositely skewed (tilted) with respect to the bore axis, the combined current density on the surface is cos({theta})-like and the resulting magnetic field in the bore is a pure dipole field. Following a previous test of such a superconducting dipole magnet, a quadrupole magnet was designed and built using similar principles. This paper describes the design, construction and test of a 75 mm bore 600 mm long superconducting quadrupole made with NbTi wire. The simplicity of the design, void of typical wedges, end-spacers and coil assembly, is especially suitable for future high field insert coils using Nb{sub 3}Sn as well as HTS wires. The 3 mm thick coil reached 46 T/m but did not achieve its current plateau.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Accelerator& Fusion Research Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1000347
• Report Number(s): LBNL-4064E
• Journal Information: IEEE Transactions of Applied Superconductivity, Journal Name: IEEE Transactions of Applied Superconductivity Journal Issue: 3 Vol. 19; ISSN 1051-8223; ISSN ITASE9
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CURRENT DENSITY
DESIGN
MAGNETIC FIELDS
NIOBIUM ALLOYS
SUPERCONDUCTING MAGNETS
TESTING
TITANIUM ALLOYS