jordan.vanosky@LIGO.ORG - posted 09:21, Thursday 01 October 2026 (92142)
GV19 Opened 9/30/26
After GV20 had been locked opened, we opened GV19 to connect the EX volume with the beamtubes. The annulus volume was opened to the annulus ion pump before opening, there was a small increase in ion pump current but it quickly returned to normal, and the metal valve to the gate annulus was closed. Both EX gate valves are now open.