Optical measurement

Optical measurement is maintained by Chris Kenney.
This procedure depends on CSPAD construction.
For CSPad with moving quads (for CXI) measurement is done quad-by-quad,
where the 1st point of each quad is cloasest to the beam and has coordinates (0,0).

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• Metrology in XLSX
• Metrology in TXT
• Metrology in standard TXT

QC procedure and results

For quality chech we calculate
S1 - 1st short side length of 2x1
S2 - 2nd short side length of 2x1
L1 - 1st long side length of 2x1
L2 - 2nd long side length of 2x1
D1 - 1st diagonal of 2x1 between corners 1 and 3
D2 - 2nd diagonal of 2x1 between corners 2 and 4
dS and dL are the deviations of the 1st and 2nd corner along the short and long sides, respectively. The sign of all dS are chosen in order to provide correct sign for the tilt angle (the same direction for all 2x1 sensors).
<dS/L> - the tilt angle of 2x1 averaged over two sides in radians.
angle(deg) - the same angle in degrees.
dD = D1 - D2
d(dS) = dS1 - dS2
d(dL) = dL1 - dL2

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