Concentric Titled Double-Helix Dipole Magnets

Meinke, Rainer ; Goodzeit, Carl ; Ball, Millicent

Advanced Magnet Lab, Inc.

关键词: 43 Particle Accelerators Superconducting Magnet;    Superconducting Magnet;    Dipole;    A15-Type Conductors;    Stress Management;   

DOI  :  10.2172/817768
RP-ID  :  DOE/ER/83360-1
RP-ID  :  FG02-02ER83360
RP-ID  :  817768

美国|英语

来源: UNT Digital Library

【 摘 要 】

The high magnetic fields required for future accelerator magnets can only be achieved with Nb3Sn, other A15 or HTS type conductors, which are brittle and sensitive to mechanical strain. The traditional ''cosine-theta'' dipole configuration has intrinsic drawbacks that make it difficult and expensive to employ such conductors in these designs. Some of these problems involve (1) difficulty in applying enough pre-stress to counteract Lorentz forces without compromising conductor performance; (2) small minimum bend radii of the conductor necessitating the intricate wind-and-react coil fabrication; (3) complex spacers in particular for coil ends and expensive tooling for coil fabrication; (4) typically only 2/3 of the coil aperture can be used with achievable field uniformity.