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Glossary
Pages 49-51

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From page 49...
... Its nucleus consists of protons and neutrons and is surrounded by orbiting electrons. Background radiation: the amount of radiation to which a member of the population is exposed from natural sources, such as naturally occurring radionuclides in the soil, cosmic radiation occurring in outer space, and naturally occurring radionuclides deposited in the human body.
From page 50...
... HEW is primarily in the form of spent fuel discharged from commercial nuclear power reactors. It also includes some reprocessed material from defense activities and a small quantity of reprocessed commercial HEW (10 CFR Part 60)
From page 51...
... Radioimmunoassay: quantitative determination of antigen and antibody concentrations by the introduction of a radioactively labeled, complimentary substance that can be expected to bind to the molecules in question and the measurement of a resulting radioactive immune complex. Radioactive contamination: radioactive material that is present in an unwanted location and has no useful purpose.


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