title: A low-level radon detection system.
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis; D004867:Equipment Design; D011834:Radiation Monitoring / Q000295:instrumentation*; D011886:Radon / Q000032:analysis*
chemical_list: D000396:Air Pollutants, Radioactive; D011886:Radon