SLAC Magnetic Measurements
Date: 08-01-1994
Time: 10:47:53

Magnet Name: 188
Test Operator: BD
Test Stand: gap measurement stand
Apparatus: gap sensors
Run Number: 3
Comment: 

Average Gap Values and Standard Deviations:
Average Outer Gap Width, Gout =  2754.187  +-  3.634548  mils
Average Inner Gap Width, Gin =  2759.204  +-  1.507675  mils
Average Middle Gap Width, Gm =  2788.696  +-  2.473626  mils
Average Gradient, 1/G dG/dx = -9.423191E-03  +-  4.789341E-03  1/m

Average Height Values and Standard Deviations:
(Heights are relative to the ideal magnet elevation.)
Average Outer Midplane Height, Hout =  9.473694E-03  +-  5.580314  mils
Average Inner Midplane Height, Hin =  4.872312E-02  +-  4.634511  mils

Average Roll Angle and Standard Deviation:
Average Roll Angle, Roll =  5.219333E-03  +-  .2855819  mrad

Shims

Fit to Roll vs z:
R(z) = -2.552456E-03  * z +  .27227 
Shims to make the roll and twist zero:
Foot 1, shimr1 = -3.046092  mils
Foot 2, shimr2 =  2.875605  mils

Fit to Hout vs z:
Hin(z) =  2.911696E-02  * z + -3.036889 
Shims to make the height and pitch zero:
Foot 1, shimh1 =  1.668392  mils
Foot 2, shimh2 = -1.709176  mils


Shim Values For Each Support Point:

                  Upstream End
             Inside         Outside

Foot 1        -1             2    mils








Foot 2         1            -2    mils

                  Downstream End