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User name R. Michaels
Log entry time 07:44:08 on November 19, 2010
Entry number 340767
This entry is a followup to: 340763
keyword=re: cryo, it's due to hall C
Hall C is having some sort of crisis with their target. I don't
understand it 100%, but something to do with their fan quitting and
the target partly freezing. They're on the phone with experts, etc.
This is the root cause of the cryo instability. On our end, it so far
means yellow alarms and 1 K excursions in the target temp, so I guess
we'll just ride the storm. Our measely 3 uA beam is not hard to deal with.
The HRS looks stable, I guess it's decoupled somewhat.