Figures 1 to 5 report the absorption measurements of the annealed AZTEC sample.

fig1 and 2 are respectively xz and yz measurements

fig 3, 4 and 5 are xy measurements at respectively z = 48 mm, z = 58.68 mm (center of sample) and z = 69.36 mm.

Few things to notice :

• Mean absorption is about 90 ppm/cm which is more than previously measured. I had a look at previous measurements and found that there was mistakes. The corrected results are in figure 6 to 8 which also show similar levels of absorption.
• The absorption along z is far less homogeneous than before. It might be a clue for contamination during the annealing and that the annealing duration was too short
• The xy measurements at z = 48 and 69 mm are far more homogeneous than at z = 58 mm. It could indicates that with longer annealing duration we could reach really homogeneous absorption.
• Comparing the xy measurements at the z center position (fig 4 and 6) we can recognize similar patterns. Because the markers on the sample barrel were cleaned before annealing (to avoid contamination), we could estimate that there is some rotation discrepancy between the 2

More analysis are also on-going