Re: Notes of Cal working group meeting uploaded.

[Matthew Shepherd <mashephe@indiana.edu>]

On Apr 3, 2009, at 2:07 PM, Elton Smith wrote:

> #* Matt: Mentioned that CLEO had good success with the following  
> scheme
> for cooling their drift chamber electronics: Fill space with (dry)  
> N2. Use
> polyethelne tubing with cooling liquid (PF200) to cool N2. System was
> robust and inexpensive.

I looked up the numbers on this -- the total power radiated by CLEO  
preamps was about 150W.  This seems significantly (about 10x?) less  
than the numbers I remember for the SiPMs.  So, I'm not sure this type  
of solution works.

-Matt