Cosmogenic and implanted radionuclides studied by selective etching of lunar soils

We have made new measurements of the concentrations of 14C and 10Be in lunar surface soils. We discuss the results of these new studies based on different acid etching methods, which provide useful information for future experiments. We also discuss the implications of these results for the production of these radionuclides by galactic and solar cosmic radiation, and the direct implantation of solar-energetic particles into lunar surface material