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I am trying to build a thermoelectric cloud chamber, it’s not showing any trails with a alpha source or cosmic rays. The only thing I see is alcohol vapour (small white dots). Using 99% isopropyl alcohol and temperature of plate up around -33C. Electric field is around 800v.

Here are some photos, thanks in advance.

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  • $\begingroup$ Hi and welcome to physics.SE! Please note that a bunch of photos without any accompanying explanation and without any more question than "help me" do not constitute a specific physics question, which is what this site is for. $\endgroup$ – ACuriousMind Mar 17 '18 at 11:32
  • $\begingroup$ @ACuriousMind It is difficult to be more specific than this when things do not work. It is also difficult to answer such problems, but that is a different issue. And there might be people here with experience of such a setup. I see a general unfriendliness here to experimental questions: "go ask on chemistry", "go ask on engineering", etc. $\endgroup$ – Pieter Mar 17 '18 at 12:28
  • $\begingroup$ @freddieknets is an expert on this, see his answer at physics.stackexchange.com/q/281297 $\endgroup$ – Pieter Mar 17 '18 at 12:41