chandra.romel@LIGO.ORG - posted 15:30, Wednesday 17 May 2017 - last comment - 20:21, Wednesday 17 May 2017(36246)
X&Y beam manifold pressures
Trend of X&Y beam manifold pressures through various modes of pumping over two days.
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Valving out turbos for the evening.
Plan to open GV 1,2 tomorrow morning so crews can use oplev to help with ITMx alignment. We may gain some time in pump down with two more turbos helping.
On second thought I'm leaving turbos valved in with IPs.
Turbo inlet pressures just before valving IPs back in:
Y: 7.7e-9 Torr (2.2e-3 Torr)
X: 5.3e-9 Torr (2.4e-3 Torr)