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. Author manuscript; available in PMC: 2018 Sep 13.
Published in final edited form as: IEEE Trans Appl Supercond. 2018 Jan 30;28(3):4301105. doi: 10.1109/TASC.2018.2799182

TABLE II.

Key Parameters of 1-Layer Z1 and Z2 (Z21, Z22 & Z23) Shim Coils for 1.3G

Z1 Z21 Z22 Z23
SS Coil form: OD; Wall (δ) [mm] 80; 1.5
Bi2212 wire: Dimensions [mm] 1.25 × 0.60
 Ic in 30.5 T @4.2 K [A] 250
 Tolerable stress limit [MPa] >250
Winding ID (2a1) / OD (2a2) [mm] 80.0/81.2
Bottom z positions (b1) [mm] 30.4 7.0 41.0 103
Top z positions (b2) [mm] 40.4 15.5 88.8 145
# of turns ±8 2×6 2× −38 2×34
Operating currents, IZ1 & IZ2 [A] ≤100
Total conductor [m] 4 3 19 17
Inductances
 Self, LZ1, LZ2 [μH] 17 219
 Mutual to 1.3G, MZ1, MZ2 [μH] 0 6.0
0th term [Hz/A] 0 4.7
1st term [Hz/cm A] 1663 0
2nd term [Hz/cm2 A] 0 −893
3rd term [Hz/cm3 A] 0.3 0
4th term [Hz/cm4 A] 0 −0.5