There was a wrong setting of the imaging unit position (z_iu = 61.96mm insteadof 61.46 mm).

I restarted all measurements but will use rougher step (0.25mm)

L19.7#1

long z scan : Tue, Feb 20, 2024 11-21-55 AM.txt

z edges : 37.85 and 50 ; z_center = 43.925 mm

after DC centering : Tue, Feb 20, 2024 11-35-28 AM.txt with Pt = 4.87 +/- 0.17W, lockin sensiibility 10mV

map : Tue, Feb 20, 2024 11-46-40 AM.txt

L20#1

ziu to 61.33mm

z edges at 38 and 50.1 mm ie z_center = 44.05 mm

after DC centering : Tue, Feb 20, 2024 2-30-45 PM.txt with lockin sensitivity = 20mV and Pt = 4.84 +/-0.17 W

map : Tue, Feb 20, 2024 2-42-32 PM.txt with lockin sensitivity = 50mV and Pt = 4.83 +/-0.17W

L20#2

long z scan with Pt = 4.84 +/- 0.17 W ; lcokin sensitivity 20mV ; same edges found

Tue, Feb 20, 2024 5-10-28 PM.txt

map Tue, Feb 20, 2024 5-20-22 PM.txt with lockin sensitivity 50mV and Pt = 4.84 +/- 0.17 W