 06 Nov 2019 00:33, Yi Wang, Procedure/Operation, Cooling System, fast re-circulation
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Start at 09:35 am, open dewar liquid level 40/120
Stop at 08:20 pm, for the evening data taking |
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05 Nov 2019 10:56, Yi Wang, Procedure/Operation, Cooling System, fast re-circulation
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Nov 04 in the morning, start using heat gun to blow the liquid argon in the open dewar, in order to rise the pressure difference between the TPC
and the condenser.
Nov 04 fast circulating for 7 hours, pressure difference ~90 mbar |
02 Nov 2019 11:44, Alex Kish, Procedure/Operation, Cooling System, Forcing recirculation 
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Argon refills of the open bath are suspended in order to increase the deltaP between the TPC and the recirculation vessel, in order to force gas recirculation
through the oxygen-sorption filter. The goal is to see S2 signal.
Currently the pressure is stable, fluctuations seezed over night. DeltaP very low, ~5 mbar. |
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