Table 3 The specifications of the MgB2 solenoid coil.
From: Solid cryogen: a cooling system for future MgB2 MRI magnet
Parameters | Specifications |
|---|---|
Coil type | Solenoid |
Winding method | Wind and react |
Strand (HTR 3520S) | MgB2/Nb/Cu/Monel Nb: barrier, Cu: matrix, Monel: sheath |
Filament count | 36 + 1 (Cu at centre) |
Insulation | S-glass |
Wire diameter with insulation (mm) | 1.3 |
Wire diameter without insulation (mm) | 1.1 |
SC fill factor of the wire (%) | 11.1 |
Coil I.D./O.D./height (mm) | 130/135.2/15 |
Total turns | 23 (1st:11, 2nd:12) |
Total layers | 2 |
Coil filling factor (%) | 56 |
Impregnation | No |
Inductance, L (μH) | 123 (calculated from FEA simulation) |
128 (calculated from inductive voltages) | |
Field constant (G · A−1) | 2.19 (calculated from FEA simulation) |
2.22 (measured using Hall sensor) |
