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Reports until 09:19, Wednesday 25 July 2018
H1 ISC
gabriele.vajente@LIGO.ORG - posted 09:19, Wednesday 25 July 2018 - last comment - 11:01, Wednesday 25 July 2018(43059)
PRMI buildup: trying to translate beam with IM3/4

Continuing the work of 43055, the idea was to translate the beam on PR2 by moving IM3 and IM4, while looking ta the PR2 camera image to see if the alleged clipping on the right side of the PR2 scraper baffle changed.

The first plot below shows that by moving IM3 and IM4 quite a lot in both directions, it was not possible to improve the PRMI buildup. At the same time, no noticeable change was visible in the PR2 camera rightmost spot, which is believed to be some clipping on the edge of the PR2 baffle aperture.

 

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Comments related to this report
gabriele.vajente@LIGO.ORG - 09:20, Wednesday 25 July 2018 (43060)

The "Take Snapshot" button on the PR2 camera interface doesn't work anymore

david.barker@LIGO.ORG - 10:43, Wednesday 25 July 2018 (43062)

I restarted the service on h1digivideo0 for CAM8, when it starts it updates the centroids and then locks up the epics values. The streaming image itself if live, but the time stamp is frozen at the service startup time. The buttons all have their 'active led' lit up.

Investigation continues

Images attached to this comment
david.barker@LIGO.ORG - 11:01, Wednesday 25 July 2018 (43065)

Carlos, Dave:

PR2 camera is working again. h1digivideo0 has been up for 309 days, so we did an OS upgrade and then rebooted it. The PR2 MEDM is now active, and the time stamp on the camera image is updating. I made a snapshot and the tiff image was written.

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