The main spectroscopic technique for studying radicals in solids and liquids, ESR, cannot usually be used to study radicals of more than 3-5 atoms in the gas phase due to strong coupling between the spin, rotational, and orbital angular momenta. Muon spin rotation/relaxation/resonance (MuSR) does not suffer from this problem, potentially making it superior for gas phase measurements. We are attemping to demonstrate RF MuSR as a new tool for measuring organic radicals in the gas phase, opening up the possibility of final state spectroscopy on such systems.