SLAC Magnetic Measurements
Date: 04-23-2001
Time: 16:50:33

Project: spear3
Magnet Type: gdipole
Magnet Name: proto_test_stand
Serial Number: 
Run Number: 79
Measurement Device: single wire
Operator: jy
Comment: two more test currents for mag center

Standardization:
     1 cycles from    0.0 A to  770.0 A to    0.0 A

Test Currents (A):
     250.0     300.0


        Integrated Field Strength vs X

Distance the wire was moved =  0.010000 m
Number of turns in the wire = 1
Number of measurements for averaging = 4

     X0        Imag    sigImag      BL    sigBL   
    (m)        (A)       (A)       (Tm)    (Tm)   
 ----------  --------+--------  --------+-------- 
  -0.050000   249.736    0.009   0.89454  0.00095
  -0.040000   249.746    0.005   0.87462  0.00099
  -0.030000   249.731    0.008   0.85379  0.00080
  -0.020000   249.728    0.012   0.83394  0.00062
  -0.010000   249.738    0.005   0.81306  0.00057
   0.000000   249.733    0.008   0.79399  0.00041
   0.010000   249.728    0.010   0.77329  0.00028
   0.020000   249.723    0.017   0.75412  0.00055
   0.030000   249.730    0.007   0.73392  0.00073
   0.040000   249.734    0.004   0.71487  0.00027
   0.050000   249.740    0.016   0.69493  0.00029

The magnetic center is at
X =   0.024693 +-   0.000127 m

   Integrated Strength At The Magnetic Center

     X0        Imag    sigImag      BL    sigBL   
    (m)        (A)       (A)       (Tm)    (Tm)   
 ----------  --------+--------  --------+-------- 
   0.024693   249.726    0.010   0.74425  0.00019

BL_center =  0.74480 Tm
(BL_meas - BL_center)/sigBL =  -2.8992
  -0.050000   299.753    0.008   1.07341  0.00053
  -0.040000   299.754    0.007   1.04887  0.00067
  -0.030000   299.763    0.006   1.02498  0.00110
  -0.020000   299.741    0.003   1.00065  0.00056
  -0.010000   299.758    0.005   0.97683  0.00119
   0.000000   299.836    0.106   0.95288  0.00064
   0.010000   299.752    0.009   0.92915  0.00028
   0.020000   299.743    0.009   0.90448  0.00049
   0.030000   299.771    0.007   0.88116  0.00082
   0.040000   299.756    0.010   0.85765  0.00059
   0.050000   299.748    0.008   0.83365  0.00028

The magnetic center is at
X =   0.024643 +-   0.000108 m

   Integrated Strength At The Magnetic Center

     X0        Imag    sigImag      BL    sigBL   
    (m)        (A)       (A)       (Tm)    (Tm)   
 ----------  --------+--------  --------+-------- 
   0.024643   299.767    0.013   0.89389  0.00037

BL_center =  0.89403 Tm
(BL_meas - BL_center)/sigBL =  -0.3788