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									    Stability of geometry between
    SMA18 and SMI2

   Changement de la forme des aimants
   Rotation de l’aimant
   Mouvements des extrémités (considérant que
    le cryostat est fixe)
   Variation de position des mires (Fiducials)
   3011et 3041
   Aimants dits stables :1014, 1031, 1048, 2008,
    3065 et 3022
               3041
                             3041 - horizontal sma18-smi2
                                                                                                    Sagitta : +1.2mm
 1.2
                                                                                                    Rot : -0.17mrd
   1

 0.8

 0.6
                                                                                                               SMI2-SMA18
 0.4                                                                                                ID      dx       dy       dz
                                                                                    V1(sma18)       Fid_E       0.45    -0.05     0.02
 0.2
                                                                                    V2(sma18)
                                                                                                    Fid_M       0.56    -0.12    -0.03
                                                                                    V1(smi2)
    0
                                                                                    V2(smi2)
                                                                                                    Fid_S       0.48    -0.23    -0.04
-500    1500   3500   5500     7500           9500          11500   13500   15500
 -0.2                                                                               V1(smi2_bis)    Fid_T       0.50    -0.24     0.04
                                                                                    V2(smi2_bis)
 -0.4
                                                                                                    Side       Dx            Dz
 -0.6
                                                                                                               (mm)          (mm)
 -0.8
                                                                                                    C          .22           .12
   -1
                                                                                                    L          .32           .11
 -1.2
                      3011
                             3011 - horizontal sma18-smi2
                                                                                          Sagitta+1.0mm
 1.2
                                                                                          Rot : 0.12 mrd
   1

 0.8
                                                                                                           SMA18-SMI2
 0.6
                                                                                                ID      dx       dy       dz
 0.4                                                                                              Fid_E     0.36     0.01     0.03
                                                                                                  Fid_M     0.60    -0.45     0.01
 0.2
                                                                                    V1(sma18)
                                                                                                  Fid_S     0.46    -0.86     0.00
                                                                                    V2(sma18)
    0
                                                                                    V1(smi2)      Fid_T     0.56    -0.86    -0.07
-500    1500   3500   5500      7500           9500         11500   13500   15500
 -0.2                                                                               V2(smi2)


 -0.4
                                                                                                Side        Dx            Dz
 -0.6
                                                                                                            (mm)          (mm)
 -0.8
                                                                                                C           0.12          0.05
   -1
                                                                                                L           0.04          0.13
 -1.2
                      1014
                             1014 - horizontal sma18-smi2
                                                                                               Sagitta 0.0 mm
 1.2
                                                                                               Rot : 0.45 mrd
   1

 0.8
                                                                                                             SMI2-SMA18
 0.6                                                                                              ID      dx        dy       dz
                                                                                                    Fid_E     -0.44     0.34     0.18
 0.4
                                                                                                    Fid_M     -0.47     0.04    -0.06
 0.2
                                                                                    V1(sma18)
                                                                                                    Fid_S     -0.25    -0.31     0.16
                                                                                    V2(sma18)       Fid_T     -0.20    -0.32    -0.08
    0
                                                                                    V1(smi2)
-500    1500   3500   5500      7500           9500         11500   13500   15500
 -0.2                                                                               V2(smi2)


 -0.4
                                                                                                 Side       Dx             Dz
 -0.6
                                                                                                            (mm)           (mm)
 -0.8
                                                                                                 C          0.42           -0.06
   -1
                                                                                                 L          0.25           0.14
 -1.2
                      1031
                             1031 - horizontal sma18-smi2                                      Sagitta +0.4 mm
 1.2                                                                                           Rot : -0.27 mrd
   1

 0.8                                                                                                          SMI2-SMA18
 0.6
                                                                                                  Id       dx       dy       dz
                                                                                                     Fid_E     0.34    -0.16      -0.29
 0.4
                                                                                                     Fid_M     0.40    -0.36      -0.29
 0.2
                                                                                    V1(sma18)
                                                                                                     Fid_S     0.33    -0.62      -0.27
                                                                                    V2(sma18)        Fid_T     0.36    -0.62      -0.12
    0
                                                                                    V1(smi2)
-500    1500   3500   5500      7500           9500         11500   13500   15500
 -0.2                                                                               V2(smi2)


 -0.4
                                                                                                  Side        Dx            Dz
 -0.6
                                                                                                              (mm)          (mm)
 -0.8
                                                                                                  C           -0.01         0.04
   -1
                                                                                                  L           -0.04         0.07
 -1.2
                      1048
                             1048 - horizontal sma18-smi2
                                                                                               Sagitta +0.4 mm
 1.2
                                                                                               Rot : 0.60 mrd
   1

 0.8                                                                                                         SMI2-SMA18
                                                                                                  ID      dx        dy       dz
 0.6
                                                                                                    Fid_E     -0.27     0.29       0.04
 0.4                                                                                                Fid_M     -0.10     0.09      -0.05
                                                                                                    Fid_S     -0.27    -0.09      -0.02
 0.2
                                                                                    V1(sma18)
                                                                                                    Fid_T     -0.25    -0.11      -0.34
                                                                                    V2(sma18)                 -0.22     0.04      -0.09
    0
                                                                                    V1(smi2)
-500    1500   3500   5500      7500           9500         11500   13500   15500
 -0.2                                                                               V2(smi2)


 -0.4
                                                                                                  Side        Dx            Dz
 -0.6
                                                                                                              (mm)          (mm)
 -0.8
                                                                                                  C           0.09          0.18
   -1
                                                                                                  L           0.25          0.07
 -1.2
                      2008
                             2008 - horizontal sma18-smi2                                      Sagitta +0.2 mm
 1.2                                                                                           Rot : 0.16 mrd
   1

 0.8                                                                                                         SMI2-SMA18
                                                                                                 Id       dx        dy       dz
 0.6
                                                                                                    Fid_E     -0.16     0.81      -0.28
 0.4                                                                                                Fid_M     -0.45     0.32      -0.29
                                                                                                    Fid_S     -0.07    -0.27      -0.23
 0.2                                                                                                Fid_T     -0.03    -0.18      -0.31
                                                                                    V1(sma18)
                                                                                    V2(sma18)                 -0.18     0.17      -0.28
    0
                                                                                    V1(smi2)
-500    1500   3500   5500      7500           9500         11500   13500   15500
 -0.2                                                                               V2(smi2)


 -0.4
                                                                                                  Side        Dx              Dz
 -0.6
                                                                                                              (mm)            (mm)
 -0.8
                                                                                                  C           0.33            0.21
   -1
                                                                                                  L           0.28            0.07
 -1.2
                      3065
                             3065 - horizontal sma18-smi2                                         Sagitta +0.8 mm
 1.2                                                                                              Rot : 0.41 mrd
   1

 0.8                                                                                                           SMI2-SMA18
                                                                                                    ID      dx       dy       dz
 0.6
                                                                                                      Fid_E     0.11    -0.05      -0.01
 0.4                                                                                                  Fid_M     0.12    -0.18      -0.04
                                                                                    V1(sma18)         Fid_S     0.03    -0.30      -0.05
 0.2
                                                                                    V2(sma18)         Fid_T     0.05    -0.29      -0.27
                                                                                    V1(smi2)
    0                                                                                                           0.08    -0.20      -0.09
                                                                                    V2(smi2)
-500    1500   3500   5500     7500           9500          11500   13500   15500
 -0.2                                                                               V1(smi2_bis)
                                                                                    V2(smi2_bis)
 -0.4
                                                                                                     Side       Dx             Dz
 -0.6
                                                                                                                (mm)           (mm)
 -0.8
                                                                                                     C          0.14           0.06
   -1
                                                                                                     L          0.16           -0.03
 -1.2
                      3022
                             3022 - horizontal sma18-smi2
                                                                                               Sagitta 0 mm
 1.2
                                                                                               Rot : -0.19 mrd
   1

 0.8
                                                                                                            SMI2-SMA18
 0.6                                                                                             ID      dx       dy       dz
                                                                                                 Fid_E       0.07    -0.05      -0.10
 0.4
                                                                                                 Fid_M       0.08    -0.12      -0.10
 0.2                                                                                             Fid_S       0.03    -0.18      -0.04
                                                                                    V1(sma18)
                                                                                    V2(sma18)
                                                                                                 Fid_T       0.03    -0.18       0.07
    0
                                                                                    V1(smi2)                 0.05    -0.13      -0.04
-500    1500   3500   5500      7500           9500         11500   13500   15500
 -0.2                                                                               V2(smi2)


 -0.4
                                                                                                 Side        Dx             Dz
 -0.6
                                                                                                             (mm)           (mm)
 -0.8
                                                                                                 C           0.00           0.14
   -1
                                                                                                 L           0.07           0.17
 -1.2
                 Summary

          Mov of Fiducials SMI2(FIDU)-SMA18(FIDU)       Change of shape                      Movement at ends
Magnet    dx (mm)      dz (mm)        Rot (mrd)      hor.     vert. cryostat   dx          dz         dy        rotation(mrd)
   1006           0.60           0.00          -0.30    -2.2     0.0    -0.3   0.43/1.15 0.38/0.30          0.5
   1008           0.26           0.00           0.16      0.7    0.0     0.2   0.15/-0.06 -0.01/-0.08
   1009           0.20           0.00           0.09      0.4    0.0     0.0   -0.23/0.23 0.06/-0.13       -0.3 -0.15/-0.04
   1013          -0.59           0.10           0.68    -0.4 -0.2       -0.2   0.27/0.03 0.20/0.26            0 -0.18/-0.18
   1035          -0.11           0.03          -0.44      0.5    0.0     0.0   0.39/0.29 -0.08/0.01           0 0.00/-.08
   2009          -0.09          -0.13           0.19      0.0    0.0    -0.1   0.01/0.05 0.04/0.02            0 0.08/0.03
   3041           0.50           0.00          -0.17      1.2    0.0     0.1   0.22/0.32 0.12/0.11
   3011           0.50          -0.01           0.12      1.0    0.0     0.2   .12/0.04 0.05/.13
   1014          -0.34           0.05           0.45      0.0 -0.1      -0.1   0.42/0.25 -0.06/0.14
   1031           0.36          -0.24          -0.27      0.4 -0.1       0.0   -0.01/-0.04 0.04/0.07
   1048          -0.22          -0.09           0.60      0.4    0.0     0.2   0.09/0.25 0.18/0.07
   2008          -0.18          -0.28           0.16      0.2    0.0    -0.3   0.33/.28 .21/0.07
   3022           0.05          -0.04          -0.19      0.0    0.0     0.0   0.00/0.07 0.14/0.17
   3065           0.08          -0.09           0.41      0.8    0.0     0.0   0.14/0.16 -0.06/0.03
       Conclusions

 Half of the magnets have a change of the
  shape of more than 0.3mm
 Small deviations on the extremities

=>
 More than half of the magnets have
  deviations on the horizontal position of
  fiducials of more than 0.3mm
 Good repetability of the measurements

								
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