SLAC Magnetic Measurements
Date: 08-04-1994
Time: 09:35:43

Magnet Name: 186
Test Operator: BD
Test Stand: gap measurement stand
Apparatus: gap sensors
Run Number: 1
Comment: 

Average Gap Values and Standard Deviations:
Average Outer Gap Width, Gout =  2754.683  +-  3.647795  mils
Average Inner Gap Width, Gin =  2756.823  +-  2.058795  mils
Average Middle Gap Width, Gm =  2787.754  +-  2.616762  mils
Average Gradient, 1/G dG/dx = -4.021356E-03  +-  5.215891E-03  1/m

Average Height Values and Standard Deviations:
(Heights are relative to the ideal magnet elevation.)
Average Outer Midplane Height, Hout = -28.06766  +-  6.992238  mils
Average Inner Midplane Height, Hin = -11.93377  +-  4.628701  mils

Average Roll Angle and Standard Deviation:
Average Roll Angle, Roll =  2.145462  +-  .4194676  mrad

Shims

Fit to Roll vs z:
R(z) =  3.357965E-03  * z +  1.794135 
Shims to make the roll and twist zero:
Foot 1, shimr1 = -39.03919  mils
Foot 2, shimr2 = -46.82967  mils

Fit to Hout vs z:
Hin(z) = -1.808125E-02  * z + -26.17591 
Shims to make the height and pitch zero:
Foot 1, shimh1 =  27.02573  mils
Foot 2, shimh2 =  29.12315  mils


Shim Values For Each Support Point:

                  Upstream End
             Inside         Outside

Foot 1        -12             27    mils








Foot 2        -18             29    mils

                  Downstream End