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Entry  Fri Jul 16 20:25:52 2010, Megan, Update, PSL, Reference Cavity Insulation DSC_2271.JPGDSC_2266.JPG
    Reply  Fri Jul 16 23:53:27 2010, Rana, Update, PSL, Reference Cavity Insulation 
       Reply  Fri Jul 23 16:02:16 2010, Rana, Update, PSL, Reference Cavity Insulation Untitled.png
          Reply  Fri Jul 23 21:14:29 2010, Rana, Update, PSL, Reference Cavity Insulation 
Message ID: 3241     Entry time: Fri Jul 16 23:53:27 2010     In reply to: 3240     Reply to this: 3280
Author: Rana 
Type: Update 
Category: PSL 
Subject: Reference Cavity Insulation 

From the trend, it seems that the Reference Cavity's temperature servo is working fine with the new copper foil. I was unable to find the insulating foam anywhere, but that's OK. We'll just get Frank to make us a new insulation with his special yellow stuff.

The copper foil that Steve got is just the right thickness for making it easy to form around the vacuum can, but we just have to have the patience to wrap ~5-10 more layers on there. We also have to get a new heater jacket; this one barely fits around the outside of the copper wrap. The one we have now seems to have a good heating wire pattern, but I don't know where we can buy these.

I also turned the HEPA's Variac back down to the nominal value of 20. Please remember to turn it back up to 100 before working on the PSL.

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