John: Sterile environment, possibly a small lab, the containment room needs to have magnetic fields, keeping the particles away from any matter, we have some fully functioning Magnetic Matter Distortion Rods, MMDR for short, which can keep the particles in place while we work on them, we need many instruments and many materials, too many materials, and finally it needs to be located somewhere so far away that if something went wrong, NO ONE would be hurt, we have a HMDS back at our labs that can make a portal so the rest it up to you