1. Management objectives and challenges
1.1 Waste specificity
All radioactive waste contains radionuclides, which are radioactive isotopes of many chemical elements. A radionuclide is denoted by A X, where A is the isotope's mass number (the number of nucleons in its nucleus) and X is the symbol of the chemical element to which it belongs.
A radioelement is an element whose known isotopes are all radioactive. There are natural radioelements (uranium, radium, etc.) and artificial ones (technetium, man-made uranium, plutonium, etc.). A natural radioelement has a fixed isotopic composition (on a human timescale). The isotopic composition of an artificial radioelement is highly variable. An artificial element has a variable...
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Management objectives and challenges
Radioactive waste
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