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Reports until 14:57, Tuesday 20 August 2024
H1 CAL
francisco.llamas@LIGO.ORG - posted 14:57, Tuesday 20 August 2024 (79608)
Pcal XY comparison investigation - inner beam moved to center

MiriamR, RickS, TonyS, FranciscoL

On Monday, August 19, we moved the X-End pcal inner beam to be centered on the Rx input port. The previous configuration had the inner beam to the right of the Rx input port by 5mm. We centered the beam to the desigated position before the interferometer resumes the obsevation run.

Note: Screwing the yaw-adjuster in a clock-wise motion moves the beam from the right side of the target to the center (goes to the left).

The voltage from BothBeamsBefore.jpg was of 3.383 V as measured with a hanheld voltmeter, after moving the beams (see BothBeamsAfter.jpg) the voltage was of 3.384. EndStationLog.pdf has a list of voltage values with the corresponding times (local timezone) at which they were measured.

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