40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Wed Sep 7 22:41:44 2011, frank,tara, DailyProgress, , Two cavities are in the same chamber P1040900.JPG
    Reply  Thu Sep 8 20:53:17 2011, tara, DailyProgress, RefCav, frequency difference 
       Reply  Fri Sep 9 01:45:40 2011, Frank, DailyProgress, RefCav, frequency difference 
       Reply  Fri Sep 9 01:53:21 2011, Frank, DailyProgress, RefCav, frequency difference 
       Reply  Fri Sep 9 22:53:32 2011, frank, tara, DailyProgress, RefCav, frequency difference 
    Reply  Mon Oct 3 23:54:19 2011, frank, tara, DailyProgress, , re mode matching 
       Reply  Tue Oct 4 23:20:57 2011, frank, tara, DailyProgress, , re mode matching 
Message ID: 671     Entry time: Fri Sep 9 01:45:40 2011     In reply to: 669
Author: Frank 
Type: DailyProgress 
Category: RefCav 
Subject: frequency difference 

we can borrow the 2GHz PD from the cryo experiment for a quick measurement. Will get the shields/heaters next week and have the sensors. So we might be able to add those before the meeting, but i would do the test at 289MHz first to see what the noise looks like. If it's terrible we might have to work on other things as well. e.g. the cavity support.

Quote:

I aligned the beam to ACAV and RCAV and measured the frequency different between the two cavities to be 289 MHz.

 

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