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Entry  Thu Nov 12 18:01:10 2009, Frank, Things to Buy, RefCav, heaters for the other two chambers 
    Reply  Thu Nov 12 20:56:38 2009, rana, Things to Buy, RefCav, heaters for the other two chambers 
       Reply  Fri Nov 13 10:56:32 2009, Frank, Things to Buy, RefCav, heaters for the other two chambers 
          Reply  Fri Nov 13 12:46:35 2009, rana, Misc, RefCav, heaters for the other two chambers 
             Reply  Tue Nov 17 12:01:54 2009, Frank, Misc, RefCav, heaters for the other two chambers 
Message ID: 9     Entry time: Thu Nov 12 20:56:38 2009     In reply to: 8     Reply to this: 10
Author: rana 
Type: Things to Buy 
Category: RefCav 
Subject: heaters for the other two chambers 

I think its important to think of a good solution, since we may want to retrofit some other chambers.

For the electronics to drive the heater, let's make sure not to use the power supply solution that is in use now in LIGO and at the 40m. We should make sure to make the design such that the residual temperature noise from the heater is below what we expect for coating thermal noise, assuming we use Fused Silica spacer of 1m length.

This should be quite easy in principle, especially with the radiative shields on the inside.

 

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