Cloud Chamber Using Peltier Coolers

[FeynmanIsCool]

Hello All!
Does anyone have a good design for a Cloud Chamber using Peltier Coolers? I'm wanting to build a chamber that will be able to pick up cosmic rays/background radiation, that will be a bit more professional than a Tupperware container sitting on dry ice. Does anyone have a good design? -Thanks in advance!

 

[jambaugh]

I don't think the Peltier Coolers will be as efficacious as the dry ice. They are better at moving lots of heat at smaller temperature differences than at creating large ones and dry ice has the advantage that it sublimes at a constant temperature (at a given pressure). There's a difference between looking "more professional" and being "more professional". You do not want a cooling system that is just more "gee wiz" technical and more expensive (unless you're trying to justify a government sponsored budget).

If you're concerned with appearances update the Tupperware to a custom built chamber, say a plexiglass box with aluminum plate bottom. Trim it with riveted L-bar. (Brass is pretty!)

If, on the other hand, you have a specific functional issue with the Tupperware on dry ice then state it and you may get some good specific advice here.