Content

Optical measurements

2013-12-20-Quad-MEC-Metrology.xlsx - file with optical measurements from Gabriel
2013-12-20-Quad-MEC-Metrology.txt - text version of the same file
2013-12-20-Quad-MEC-Metrology-corr.txt - corrected file (see next section for details)

This time metrology file has all coordinates in mm (milimeters with rounding up to 10 um...

Quality check

Quality check table for original metrology file

pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)    dz3(um)

Quad  0
pair: 0   20910   20910    -180    -180     43550   43540      90      80   -0.00413   -0.23684   48304   48306      -2       0      10     99.997
pair: 1   20920   20920    -200    -200     43560   43630      10      80   -0.00459   -0.26285   48309   48401     -92       0     -70    100.033
pair: 2   20910   20100      10     820     43550   43540      10       0    0.00011    0.00658   47960   48305    -345    -810      10   1724.336
pair: 3   20910   20900    -140    -130     43540   43530     -60     -70   -0.00310   -0.17767   48294   48294       0     -10      10      9.995
pair: 4   20900   20910    -220    -210     43540   43550      90     100   -0.00494   -0.28289   48296   48311     -15     -10     -10    -69.579
pair: 5   20920   20900      40      20     43200   43550     -20     330    0.00069    0.03968   48304   47999     305      20    -350     34.059
pair: 6   20910   20910    -130    -130     43530   43540     -70     -60   -0.00299   -0.17109   48294   48298      -4       0     -10      0.002
pair: 7   20910   20909    -130    -129     43540   43540     -60     -60   -0.00297   -0.17041   48302   48298       4      -1       0    -30.000

Applied corrections

pair 1: Correction to point 2: x+0.07mm; 0.01 → 0.08
pair 2: Correction to point 16: x−0.8mm; 44.63 → 43.83
pair 5: Correction to point 24: x+0.35mm; 90.62 → 90.97

Gabriel Blaj reported that "Z deviations larger than ~150 micron are typos, or the metrology microscope focussing on the wrong surface. Please use the other 3 and assume a
flat surface to extrapolate the real Z". So, we apply Z correction:

point 13 Z=−1.76 → 0
point 17 Z=−1.75 → 0
point 18 Z=−1.80 → 0
point 21 Z=−1.76 → 0
point 22 Z=−1.75 → 0

Quality check table for corrected metrology file

pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)    dz3(um)
Quad  0
pair: 0   20910   20910    -180    -180     43550   43540      90      80   -0.00413   -0.23684   48304   48306      -2       0      10     99.997
pair: 1   20920   20920    -200    -200     43560   43560      80      80   -0.00459   -0.26307   48309   48338     -29       0       0    100.000
pair: 2   20110   20100      10      20     43550   43540      10       0    0.00011    0.00658   47960   47964      -4     -10      10     39.998
pair: 3   20910   20900    -140    -130     43540   43530     -60     -70   -0.00310   -0.17767   48294   48294       0     -10      10      9.995
pair: 4   20900   20910    -220    -210     43540   43550      90     100   -0.00494   -0.28289   48296   48311     -15     -10     -10    -20.009
pair: 5   20920   20900      40      20     43550   43550     -20     -20    0.00069    0.03947   48304   48314     -10      20       0     10.000
pair: 6   20910   20910    -130    -130     43530   43540     -70     -60   -0.00299   -0.17109   48294   48298      -4       0     -10      0.002
pair: 7   20910   20909    -130    -129     43540   43540     -60     -60   -0.00297   -0.17041   48302   48298       4      -1       0    -30.000

Geometry parameters

Parameters for center and tilt are available in

/reg/neh/home1/dubrovin/LCLS/CSPadAlignment-v01/calib-mec-2013-12-20/*/0-end.data

`Summary`

X coordinates are corrected for points 2, 16, 24
Z coordinate is corrected for points 13, 17, 18, 21, 22
After that all deviations are ~10um.

2013-12-20 Qaud MEC Alignment