LIGO Document T2400032-v4

Methodology: Pcal beam displacement investigations

Document #:
LIGO-T2400032-v4
Document type:
T - Technical notes
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Abstract:
Calculation of expected variations in the Pcal X/Y comparison when one Pcal beam is moved by a known amount. This method was originally investigated in collaboration with Julianna Lewis during her SURF project at LHO in the summer of 2023. Expected relative changes in the X/Y comparison for the LHO Xend ETM when one Pcal beam is moved down by 5~mm and moved to the left by 5~mm are calculated.

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