title: A charge collector to determine the stopping distribution of a pion beam.
mesh_terms: D004601:Elementary Particles; D004735:Energy Transfer; D008961:Models, Structural; D011137:Polystyrenes / Q000528:radiation effects; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation; D014867:Water
chemical_list: D011137:Polystyrenes; D014867:Water