title: An inexpensive rf shield for use with radiation survey instruments.
mesh_terms: D005189:False Positive Reactions; D006801:Humans; D008722:Methods; D009757:Nylons; D011830:Radiation Effects; D011846:Radio Waves; D011874:Radiometry / Q000295:instrumentation*; D012834:Silver
chemical_list: D009757:Nylons; D012834:Silver