AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CARME
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Entry time:
Wed Aug 6 11:32:29 2025
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> > 10.39 > > CARME XHV chamber pressure 6.0e-12mbar > Backing 2.1e-08mbar (Edwards vacuum cart w/RGA) > > CARME temps - heaters OFF - chamber at ambient > temperature > > All SAES D2000-10 & UHV1400 NEG power OFF > All SAES D2000-10 ion pump ON > > # V/V presssure/mbar > 1 5012 < 8.9e-12 > 2 5012 < 8.9e-12 > 3 5012 < 8.9e-12 > 4 5012 < 8.9e-12 > > Gate valve open > > attachment 1 - analog RGA scan (as found this am) > > attachment 2 - scan mode > > c. 11.15 > > AH partially closes gate valve using c. 2 bar air pressure > > VCARME XHV chamber pressure increases c. 7e-9mbar immediately > > attachment 3 - RGA scan - no obvious change in RGA trends! > > attachments 4 & 5 - VAT valve indicators - upper (partially open/closed) and lower (closed) > > 11.33 CARME XHV chamber pressure 6.6e-9mbar > Backing 2.2e-08mbar (Edwards vacuum cart w/RGA) > > All SAES D2000-10 ion pump ON > > # V/V presssure/mbar > 1 5012 < 8.9e-12 > 2 5012 < 8.9e-12 > 3 5012 < 8.9e-12 > 4 5012 < 8.9e-12 > > All SAES D2000-10 ion pump OFF > > 11.40 CARME XHV chamber pressure 5.64e-9mbar > > 11.46 CARME XHV chamber pressure 5.01e-9mbar > No change in RGA trends! > > 12.01 CARME XHV chamber pressure 3.78e-9mbar > No change in RGA trends! > > 12.11 CARME XHV chamber pressure 3.10e-9mbar > > 12.42 CARME XHV chamber pressure 1.81e-9mbar > Backing 2.4e-08mbar (Edwards vacuum cart w/RGA) > No change in RGA trends! > > 13.20 CARME XHV chamber pressure 1.06e-9mbar > Backing 2.4e-08mbar (Edwards vacuum cart w/RGA) > No change in RGA trends! > > 13.36 CARME XHV chamber pressure 8.93e-10mbar > Backing 2.4e-08mbar (Edwards vacuum cart w/RGA) > No change in RGA trends! > > 13.59 CARME XHV chamber pressure 7.07e-10mbar > Backing 2.5e-08mbar (Edwards vacuum cart w/RGA) > No change in RGA trends! > > 14.00 Leybold turbo OFF - decelerating > > 14.30 Leybold turbo OFF - decelerating - 466Hz > CARME XHV chamber pressure 5.62e-10mbar > Backing 2.1e-08mbar (Edwards vacuum cart w/RGA) > No change in RGA trends! > > 14.40 1x SAES D2000-10 ion pump switched on briefly - settles in c. 10s - pressure < 8.9e- > 12mbar > All 4x D2000-10 ion pumps OFF > > 15.01 Leybold turbo OFF - decelerating - 125Hz > CARME XHV chamber pressure 4.78e-10mbar > Backing 1.4e-08mbar (Edwards vacuum cart w/RGA) > No change in RGA trends! > > 15.10 Abrupt increase in RGA trends - see attachment 6 > Leybold turbo OFF - decelerating - 60Hz > CARME XHV chamber pressure 4.53e-10mbar > Backing 2.6e-08mbar (Edwards vacuum cart w/RGA) > > 15.19 4x SAES D2000-10 ion pumps ON > RGA record 04.24.00 > > 15.24 see attachment 7 - RGA transient recovering - turbo stopped? > > 15.10 Leybold turbo OFF - stopped - 0Hz > CARME XHV chamber pressure 4.40e-10mbar > Backing 1.1e-08mbar (Edwards vacuum cart w/RGA) > > All SAES D2000-10 ion pump ON > > # V/V presssure/mbar > 1 5012 < 8.9e-12 > 2 5012 < 8.9e-12 > 3 5012 < 8.9e-12 > 4 5012 < 8.9e-12 > > 16.10 VAT gate valve partially closed > Leybold turbo OFF - stopped - 0Hz > CARME XHV chamber pressure 3.88e-10mbar > Backing 9.8e-09mbar (Edwards vacuum cart w/RGA) > RGA traces recovered to pre-transient levels and stable > > All SAES D2000-10 ion pump ON > > # V/V presssure/mbar > 1 5012 < 8.9e-12 > 2 5012 < 8.9e-12 > 3 5012 < 8.9e-12 > 4 5012 < 8.9e-12
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