Matt, Camilla
On July 9th, we used the Ophir Nanoscan to take data on the CHETA Y-arm Table Laser 0918 with L2 at different locations on the translation stage. Data is attached to D2500319.
We then used Fintrace to project this to the ITM. Data must be saved with correct file name for this analyzer to work, using logger function of Nanoscan V2 to save. Used command: python beam_profile_analyzer_nonlinear.py /DATA/20260709_0918_after_L2_m10/ --z-offset 245
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L2 Translation Stage
Offset
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Fitted q propagated to ITM
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% Astigmatism
(Beam size)
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Horizontal
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Vertical
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-35mm
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46.65 mm
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48.73 mm
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4.4%
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-10mm (Nominal)
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53.06 mm
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51.03 mm
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3.9%
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+15mm
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62.17 mm
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57.87 mm
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7.4%
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At the nominal beam size of ~53mm on the ITMY, the beam size astigmatism is 3.9% which we think is acceptable.
We also took some data with the analyzer at a fixed position while moving L2 along the translation stage, this is also attached to D2500319.