title: Production of oxygen 15 using a relatively low energy particle accelerator with a vacuum gradient system as a window.
mesh_terms: D004583:Electrons; D006207:Half-Life; D008722:Methods; D009502:Neutrons; D009584:Nitrogen; D009688:Nuclear Reactors; D010103:Oxygen Isotopes; D011312:Pressure; D011854:Radiochemistry
chemical_list: D010103:Oxygen Isotopes; D009584:Nitrogen