KAGRA MIR (Absorption)
ManuelMarchio - 00:45, Tuesday 09 August 2016 (290)
Comment to Simulation of bulk reference sample scan. Adding a thick sapphire sample on the probe path (Click here to view original report: 288)

I got a formula to correct the positioning of the detection unit.

 SampleThickness*(n-1)/n - 1mm

In the case of 60 mm-long Sapphire the shift is 60*0.76/1.76 - 1 = 24.9 mm

I applied to the last simulation and it looks working.

Images attached to this comment
290_20160808173835_sampleplustamaiushift.png 290_20160808173938_sampleplustamaspotsiushift.png