I was thinking of finding a new hobby, and thought that playing around with the double slit experiment might be interesting. I was wondering how feasible it would be to set up the double slit experiment, not simply the laser and slit version shown here: https://www.physicsforums.com/blog.php?bt=6320 [Broken], but with all the necessary apparatus to emit particles one at a time, detect them at the slits and then record them on a screen. What equipment would be needed to set such an experiment up? Where can such equipment be purchased, and how cost prohibitive would it be? I'm allotting $5K for the initial setup, but I'm not sure what I could get for that amount of money. It just seems that the double slit experiment allows for such a broad spectrum of possible permutations that it could keep someone's interest for an extended period of time. If such an endeavor is impractical, can anyone suggest an experiment that would be both practical on a limited budget, and versatile enough to allow for future upgrades?