AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CARME
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Fri Apr 4 17:16:49 2025
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> > Grosmantage are scheduled to arrive 10.00 to inspect COF600 seals and their fit to the COF600 flange. They may decide to adjust the seals so that they fit the flange > under > tension. > > Once Grosmontage are satisfied with the seal and its fit we can close the CARME chamber and start pumping down. > > Attachment 1 - photo of bakeout tent parts including those adapted/modified by Davide. > > > 18.40 Grosmontage were re-tasked this morning. > > Davide, Omer, Cosmas checked alignment of COF600 male and female flanges. > > 4x COF600 seals were checked - for some seals we observed wave over a ~ 10cm section of the circumference and/or surface scratches/roughness. > Also observed that COF600 seals appeared to be too large - consequently the wire seal would be seated well ( i.e. in contact with the flange surface ) > for the majority of the circumference but would lift from flange surface for part(s) of the circumference. > The fourth COF600 seal seated well over all of the circumference and we decided to proceed with closing the chamber. > > COF600 flange bolts tightened sequentially 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160Nm. > > ML roughed CARME chamber slowly ( < 1mbar/s ) to protect Be window. Turbo started at 1.3mbar. Pirani gauge indicated e-3 mbar range when turbo at speed. > > > 18.53 IE514 gauge ON pressure 4.05e-5mbar. > > 19.10 Pirani 1.42e-3 mbar IE514 3.02e-5 mbar
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