See Spear3 Type Coils Aluminum Casing folder for comparison. Measurement Device: 48BC1_6main Operator: SDA Comment: Coil constant check (quad) and harmonics. Field Harmonics Magnet Current for Main = 122.12 +- 0.000259 A Harmonics given at R = 0.019596 m Coil Radius, Rcoil = 0.019596 m Main Harmonic N = 2 n BLn sigBLn THspole sigTH BLn/BLN sBLn/BLN (Tm) (Tm) (deg) (deg) (%) (%) --- ------------+------------ --------+-------- ---------+--------- 1 4.6145e-03 7.8163e-08 86.85 0.00 7.49792 0.00014 2 6.1544e-02 5.3923e-07 -44.70 0.00 100.00000 0.00124 3 1.4505e-06 6.6857e-09 -57.19 0.11 0.00236 0.00001 4 7.3424e-07 2.0195e-08 -34.67 0.43 0.00119 0.00003 5 1.9019e-07 6.4254e-09 13.88 0.41 0.00031 0.00001 6 7.2408e-07 2.5226e-08 -15.05 0.27 0.00118 0.00004 7 9.7610e-09 6.6067e-09 1.97 4.26 0.00002 0.00001 8 1.8482e-09 1.8032e-08 1.90 25.48 0.00000 0.00000 9 1.7356e-08 7.4063e-09 3.51 2.62 0.00003 0.00001 10 1.7245e-08 1.4488e-08 6.23 4.47 0.00003 0.00001 11 1.4090e-08 1.2405e-08 -16.01 4.21 0.00002 0.00001 12 5.7569e-08 2.1419e-08 -3.70 1.75 0.00009 0.00003 13 2.8892e-08 2.0497e-08 -10.65 3.12 0.00005 0.00002 14 3.1954e-09 1.6137e-08 9.95 19.48 0.00001 0.00001 15 1.6805e-08 2.8798e-08 -1.82 5.99 0.00003 0.00003 16 4.9165e-08 1.2363e-08 -7.17 1.02 0.00008 0.00002 Measurement Device: Spear3q_150_300 Operator: SDA Harmonics radius change for hardat run 14 Magnet Current, Imag = 122.12000 +/- 0.00490 Old Radius = 0.026970 New Radius = 0.019596 Main Harmonic is 2 n BLn sigBLn THspole sigTH BLn/BLN sBLn/BLN (Tm) (Tm) (deg) (deg) (%) (%) --- ------------+------------ --------+-------- -----------+----------- 1 5.3245e-003 1.7402e-007 -112.26 0.00 9.31524 0.00030 2 5.7159e-002 1.7437e-006 44.18 0.00 100.00000 0.00305 3 1.5063e-006 9.9181e-009 -51.94 0.22 0.00264 0.00002 4 7.3368e-007 2.3383e-008 -36.75 0.46 0.00128 0.00004 5 1.7616e-007 1.0754e-008 -24.01 0.69 0.00031 0.00002 6 6.0826e-007 4.4737e-008 15.68 0.94 0.00106 0.00008 7 1.0256e-007 2.6498e-008 10.16 3.38 0.00018 0.00005 8 1.4834e-008 9.6148e-009 7.17 6.75 0.00003 0.00002 9 1.8296e-008 9.6164e-009 -2.10 2.52 0.00003 0.00002 10 7.4962e-008 2.8100e-008 0.72 0.80 0.00013 0.00005 11 5.8776e-008 1.4461e-008 -11.64 1.35 0.00010 0.00003 12 1.0304e-007 2.1485e-009 -7.90 0.13 0.00018 0.00000 13 8.0517e-009 1.6756e-009 6.92 0.53 0.00001 0.00000 14 5.4111e-009 7.6403e-010 10.88 0.71 0.00001 0.00000 15 1.2925e-009 4.8990e-010 0.28 1.40 0.00000 0.00000 16 3.7256e-008 2.4252e-010 4.02 0.03 0.00007 0.00000 Wirevsx harmonics This is a listing of harmonics and integrated strength calculated using a polynomial fit: Reference Radius = 0.019596 m BLn/BL_main (%) Integrated Strength Transfer Function Run Harmonic number n 1 2 3 4 5 6 T T/I Mean -0.0369 -0.0425 0.0240 0.0118 -0.0063 0.0009 -3.1503 -0.025801 Stdev 0.0120 0.0268 0.0091 0.0118 0.0082 0.0067 0.0005 4.0551e-006