title: Radon measurement with a Lucas-type counter--application to radium determination in natural water.
mesh_terms: D005618:Fresh Water / Q000032:analysis; D011883:Radium / Q000032:analysis*; D011886:Radon / Q000032:analysis; D012588:Scintillation Counting / Q000379:methods*; D014867:Water / Q000032:analysis*
chemical_list: D014867:Water; D011886:Radon; D011883:Radium