periodically doped sample

См. также в других словарях:

• Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …   Wikipedia

• Doping in sport — In sports, doping refers to the use of performance enhancing drugs, particularly those forbidden by organizations that regulate competitions. Doping is mostly done to improve athletic performance. This is why many sports ban the use of… …   Wikipedia