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CALs distances are measured wrt CsI layers (see note below).
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CALs distances IMPORTANT NOTE:
1. Consider that each CsI crystals has a wrapper around 0.75mm thick.
This wrapper thickness must be subtracted to have the exact distances.
Hext (CsI layer height)=21.34mm
Hint (CsI crystal height)=19.9mm
DH=Hext - Hint=1.44mm --> wrapper thickness=0.72mm
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2. At each crystal end there are both gap and endcap.
The gap+endcap length is around 6mm (the length is variable reffering to NLR drawings, link below)
Lext (CsI layer length)=338mm
Lint (CsI crystal length)=226mm
DL=Lext - Lint=12mm --> gap+endcap length=6mm
PDF version:
037x7-001-001CU_Theodolite_TARGETS-INSTRUMENTS_POSITION.pdf
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