The Cyclotron Lab is a small drug manufacturing facility situated beneath a public park at the School of Medicine. The site is highly constrained, situated between two multistory buildings on a city street – a brick-clad entrance pavilion sits above, while the lab space below is enclosed within radiation-shielding concrete vaults. The cyclotron itself produces a biologically-active molecule with a positron-emitting radionuclide for use as tracer drugs in PET Scanners or PET CT Scanners. The expansion houses a second 18MeV cyclotron, with an external target station, and four class 10,000 GMP labs that house hot cells for the production of radiopharmacology products.