SLAC Magnetic Measurements
Date: 10-11-2001
Time: 12:32:53

Project: spear3
Magnet Type: gdipole
Magnet Name: 145d-024
Serial Number: 
Run Number: 12
Measurement Device: stretched wire
Operator: jy
Comment: re-do of mag ctr--last meas. w/large error

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

Test Currents (A):
     583.1


        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   583.241    0.004   2.08439  0.00045
  -0.045000   583.216    0.015   2.06212  0.00043
  -0.040000   583.218    0.008   2.03800  0.00032
  -0.035000   583.240    0.011   2.01502  0.00019
  -0.030000   583.218    0.012   1.99180  0.00044
  -0.025000   583.217    0.010   1.96785  0.00067
  -0.020000   583.237    0.009   1.94373  0.00038
  -0.015000   583.216    0.009   1.92144  0.00020
  -0.010000   583.213    0.005   1.89784  0.00023
  -0.005000   583.233    0.006   1.87401  0.00030
   0.000000   583.221    0.007   1.85090  0.00013
   0.005000   583.237    0.005   1.82771  0.00023
   0.010000   583.242    0.006   1.80412  0.00026
   0.015000   583.240    0.013   1.78071  0.00037
   0.020000   583.253    0.003   1.75727  0.00033
   0.025000   583.234    0.006   1.73448  0.00020
   0.030000   583.226    0.014   1.71159  0.00011
   0.035000   583.218    0.007   1.68850  0.00014
   0.040000   583.231    0.011   1.66507  0.00037
   0.045000   583.236    0.007   1.64149  0.00011
   0.050000   583.226    0.011   1.61646  0.00009

The magnetic center is at
X =   0.000551 +-   0.000015 m

   Integrated Strength At The Magnetic Center

     X0        Imag    sigImag      BL    sigBL   
    (m)        (A)       (A)       (Tm)    (Tm)   
 ----------  --------+--------  --------+-------- 
   0.000551   583.254    0.025   1.84824  0.00093

BL_center =  1.84859 Tm
(BL_meas - BL_center)/sigBL =  -0.3778