1. sPHENIX Magnet has got a BNL Bar Code : 152065 The simulation and the following pages have been performed and written respectively by Wuzheng Meng of C-AD Presented by Kin Yip Feb. 12, 2015

2. Opera model for full current test (Based on Yoke design by Dave P.)

3. 1 2 3 4 9 6 7 8 5 14 10 16 15 13 12 11 In order to calculate “un-even force”, Coil-pack is divided into 16 Segments (Red arrows show current flow direction) Black number coils face corners Green number coils face walls

4. (Variation is less than 4%)

5. Fringe Fields: |B|= constant Contours (Top View on Y = 0 Plane) --- Units: |B| in Gauss; X, Z in cm Opera-3d Model Boundaries 5 Gauss Safety region: |X| > 10 meter |Z| > 12.2 meter

6. |B| < 1.2 T |B| < 1.1 T (Saturation Level inside Steel is moderate)

7. Total Forces on SC Coils (at full current 4596 A; Bo = 1.36 Tesla): Fx = 0.37 N = 0 lbf Fy = -23113.2 N = - 5188.7 lbf (pointing down, where the base is thicker) Fz = - 17701.6 N = - 3973.8 lbf (pointing –Z-axis, where top-block has no cuts) (1 Newton = 0.2245 lbf)