X-Message-Number: 25384
Date: Thu, 23 Dec 2004 01:52:53 EST
Subject: Re: cryostats


> For maximum thermal efficiency, he needs a cylindrical design with support  
> only at the top. Some of our older cryostats are rectangular, with internal  
> bracing, and were good enough, but boil-off is lower with top-support  
> cylinders.

Ok, so, if I build a cryostat, it will be cylindrical. I have some months 

before finalizing the desing. It will be first used for the second experimental
set with the NMR testbed, when the HEMT low noise receptor will be built.

For now, I am only at the procurement level for the first demonstrator. The 
most pricey elements will not be paid before March 2005 because of more urging 
expense before. There is then a two months delivery waiting time. The cryostat 
would be used only next summer.

I don't work anymore, so I have some free time for such projects.

My hope ? To have a second generation He3 demonstrator giving one dimensional 
"imaging" at the micrometer level one year from now.

Yvan Bozzonetti.

 Content-Type: text/html; charset="US-ASCII"


Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=25384