Reports until 10:31, Wednesday 08 July 2026
H1 SQZ
camilla.compton@LIGO.ORG - posted 10:31, Wednesday 08 July 2026 (90946)
HAM7 Sliders for testing lower beam on ZM2

Camilla, Madi

Nominal sliders attached.

We used ZM1 sliders to move the beam down on ZM2 from approx 5.85" to 5.75". We have a target of 5.5" but could not go nay further without saturating ZM2. We then used ZM2 to bring the beam back to 6.25" at ZM3 and ZM3 to retro the beam (viewed at ZM1). Beam made it back to SQZT7 IR PD with minimal clipping seen on the PD. Sliders here

We ran out of time to do any M^2 measurements here so reverted sliders to nominal. We want to see if the astigmatism changes from original measurements. Can be done later using these values.

Images attached to this report