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Entry  Fri Oct 11 17:12:26 2019, Raymond, Chris, DailyProgress, Cryo vacuum chamber, Closing the vacuum chamber IMG_0204.JPG
    Reply  Fri Oct 11 17:33:47 2019, rana, DailyProgress, Cryo vacuum chamber, Closing the vacuum chamber 
Message ID: 2431     Entry time: Fri Oct 11 17:33:47 2019     In reply to: 2430
Author: rana 
Type: DailyProgress 
Category: Cryo vacuum chamber 
Subject: Closing the vacuum chamber 

we'll suffer if we use a oil based pump long term - please find and order a dry pump to back this turbo. Not only is it bad for the vac chamber, its bad for other optics in the lab,

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