35.4 T field generated using a layer-wound superconducting coil made of (RE)Ba2Cu3O7-x (RE = rare earth) coated conductor
Abstract
To explore the limits of layer wound (RE)Ba2Cu3O7-x (REBCO, RE = rare earth) coils in a high magnetic field environment >30 T, a series of small insert coils have been built and characterized in background fields. One of the coils repeatedly reached 35.4 T using a single ∼100 m length of REBCO tape wet wound with epoxy and nested in a 31 T background magnet. The coil was quenched safely several times without degradation. Contributing to the success of this coil was the introduction of a thin polyester film that surrounded the conductor. This approach introduces a weak circumferential plane in the coil pack that prevents conductor delamination that has caused degradation of several epoxy impregnated coils previously made by this and other groups.
- Publication:
-
Applied Physics Letters
- Pub Date:
- November 2011
- DOI:
- 10.1063/1.3662963
- arXiv:
- arXiv:1110.6814
- Bibcode:
- 2011ApPhL..99t2506T
- Keywords:
-
- barium compounds;
- conductors (electric);
- high-temperature superconductors;
- rare earth compounds;
- superconducting coils;
- 84.71.Ba;
- 74.72.-h;
- Superconducting magnets;
- magnetic levitation devices;
- Cuprate superconductors;
- Condensed Matter - Superconductivity;
- Physics - Accelerator Physics
- E-Print:
- 7 pages, 3 figures, 1 table