When someone says "plate-out" what exactly do they mean? Here is my incomplete understanding, so please correct me: -"Plate-out" refers to the deposition of daughter products of a radioisotope onto the surface of another material. For example, one might say "I am measuring the plate-out rate of radon-222 progeny onto copper." Is that right? If so, if someone said "I am measuring the radon plate-out rate onto copper," do they really mean to say the aforementioned sentence? (probably) Thanks!!