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MIMOSA and DUT positions: Caladium was measured in Jan/2016 session as documented in the Jan/2016 commissioning session Twiki which should be still correct for the plane separate of 152mm between the 3 front planes, and between the 3 back planes. However, the DUT gap looks like was increased to 357mm from the original 307mm, probably when we tried to insert the dry ice foam box for irradiated DUTs. We typically measure the DUT gap with tape header clipped to the front face of the 3rd EUDET plane as shown above. In this tape coordinate, the 3rd MIMOSA plane is at z=2.65mm behind the EUDET support metal front face (see EUDET hardware wiki). RD53A DUT (right edge of orange box) looks like to be at z~204mm which would imply the RD53A plane is at ~201.5mm behind the 3rd EUDET plane. When tilting with remote DUT rotation, the XZ transformation is unfortunate dependent on the mounting of the DUT and the rotation is not centered around DUT device so that it changes the mean z coordinate and also needs a DUT x shift to bring back to the beamline.
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