SLAC Magnetic Measurements
Date: 12-07-1994
Time: 10:44:13

Magnet Name: 160
Test Operator: mkl
Test Stand: gap measurement stand
Apparatus: gap sensors
Run Number: 2
Comment: 

Average Gap Values and Standard Deviations:
Average Outer Gap Width, Gout =  2757.788  +-  3.342436  mils
Average Inner Gap Width, Gin =  2760.858  +-  1.32953  mils
Average Middle Gap Width, Gm =  2791.323  +-  2.242804  mils
Average Gradient, 1/G dG/dx = -5.760455E-03  +-  4.50452E-03  1/m

Average Height Values and Standard Deviations:
(Heights are relative to the ideal magnet elevation.)
Average Outer Midplane Height, Hout =  .702432  +-  8.228627  mils
Average Inner Midplane Height, Hin =  .1814494  +-  7.61203  mils

Average Roll Angle and Standard Deviation:
Average Roll Angle, Roll = -6.927952E-02  +-  .2580237  mrad

Alignment Target Heights (relative to ideal):
Target Heights At Foot 1, HT1W =  4.93583 , HT1A =  9.760568  mils
Target Heights At Foot 2, HT2W =  3.289031 , HT2A =  3.518437  mils

Shims

Fit to Roll vs z:
R(z) =  2.110766E-03  * z + -.2901184 
Shims to make the roll and twist zero:
Foot 1, shimr1 =  3.818248  mils
Foot 2, shimr2 = -1.078729  mils

Fit to Hout vs z:
Hin(z) = -3.142958E-02  * z +  3.990752 
Shims to make the height and pitch zero:
Foot 1, shimh1 = -2.513562  mils
Foot 2, shimh2 =  1.13227  mils

Shim Values For Each Support Point:

                  Upstream End
             Inside         Outside

Foot 1         1            -3    mils







Foot 2         0             1    mils

                  Downstream End