r/radioactive_stuff

Hello everyone! I am currently trying to make a cloud chamber without using dry ice. The reason is because where I live dry ice is fairly expensive so I’m working without it. I’ve tried many times and had several… interesting failures but I can’t get the vapour to super saturate. I’ve tried all sorts of different dimensions for my chamber and the closest I’ve got is alcohol condensing on the bottom (at least I think it’s condensed on the bottom) but no vapour. Any tips?

hello everyone! sorry if this is a dumb question but I’m fairly new to the “hobby” side of nuclear science and wanted to see how legal it was to obtain radioactive sources. can I remove the A241 from smoke detectors? I want a small alpha source to test my new Geiger counter.

Thank you! sorry if this is a stupid question.