Fun with peltier coolers!

So here is a couple of photos of the materials I gathered to make this electrically powered cloud chamber: I have a regular computer power supply (that broke on many occasions), a massive microprocessor heat-sink, thermal paste, solder, soldering iron, archaic voltmeter and of course the source of my frigid environment--the peltier coolers! the coolers are made of copper and bismuth, when an electric current runs between the two metals, heat exchange takes place resulting in one side that cools and the other that heats up (hence the use of the heat-sink to remove the excess heat). But it's missing one critical component...the source of radioactivity! I use Americium 241 since it's commercially available in smoke detectors (it's a tiny piece of metal enclosed in a metal casing). These coolers are needed to supercool the alcohol vapor, so an efficient thermal transfer is necessary to prevent overheating one side of the peltier coolers. To do this I will use regular thermal paste to increase the medium of contact through which the heat transfer can take place.

Next time, the building begins!