Reports until 11:52, Wednesday 28 January 2026
H1 ISC
daniel.sigg@LIGO.ORG - posted 11:52, Wednesday 28 January 2026 (88947)
Whitening concentrators installed

We commissioned the 2 whitening concentrators in the ISC-R6 rack, after some of the chassis were rearranged, see alog 88922.

The whitening concentrators control the ASC-AS_C, the OMC_A and the OMC_B QPDs, and will in the future also control the ASC-LO_A and the ASC-LO_B WFS, as well as the ASC-LO_C QPD.

The slow controls software needed to be updated to support this.

All whitening controls channels were verified using the binary IO tester.