End point 1
End point 1 : (1) The final stage of a process, especially the point at which an effect is observed. Used, somewhat loosely, to describe a range of different results or consequences. For example, the term 'biological end point' is used to describe a health effect (or a probability of that health effect) that could result from exposure. (2) A radiological or other measure of protection or safety that is the calculated result of an analysis or assessment. Common end points include estimates of dose or risk, estimated frequency or probability of an event or type of event (such as core damage), expected number of health effects in a population, predicted environmental concentrations of radionuclides, etc. (3) A predetermined criterion defining the point at which a specific task or process will be considered completed. This usage often occurs in contexts such as decontamination or remediation, where the end point is typically the level of contamination beyond which further decontamination or remediation is considered unnecessary. (In such a context, this criterion may also be an end point in the sense of definition (2) - such criteria are often calculated on the basis of a level of dose or risk that is considered acceptable - but its application to the actual decontamination or remediation operations is in the sense of definition (3)
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