AChillyDog

I don't think there is such thing as space, because space is where matter or energy is absent. Therefore, how must space exist?

Okay. So lets say I had 500 microcuries of polonium inside some foil. When the alpha particles hit the foil, they abosrb it and emit a neutron. However,I have 2 problems with this. There is NO WAY I'll be able to get my hands on a decent amount of polonium. Is there an alpha only material that I can get 500 microcuries in a small amout of mass? 2nd, I need a good, relativley cheap material for the foil. It would be great if you helped me out with these questions.