cheryl.vorvick@LIGO.ORG - posted 05:58, Friday 19 January 2018 (40189)
HAM2 East door camera not yet installed, changes to the IM alignment, and signals
- the HAM2 East door analog camera is not installed, the camera housing is there, but no camera inside, lenses I currently have are not working out to give enough field of view and clear focus, mount inside the housing was moved for one camera lens, but needs to move back more to center
- looked at IM alignment, meant to reset, highlights of how the alignment was left
- IM alignment, different based on IMC differences (in-air2now), IM4 Trans, beam at PR2, and light on QPDs
- looked at alignment downstream, image below has two beams at/on the SRM baffle (upper left and lower right), investigating meant beams were much less obvious when I left (center spot never moved, maybe OSEM light?)
- no snapshot of the alignment, and can't recall IMC changes in slider values, but 1 slider count = 0.05urad, and the total ideal range of the IMs is 120000 slider counts, which is a change of +/-3mm at 1 meter from the optic, which doesn't account for IM curved mirrors, but is a staring point for approximating the change
Images attached to this report
