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Author Topic: Half-life  (Read 4013 times)

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Offline Rennhack

« on: Nov 23, 2005, 04:21 »
The time in which one half of the atoms of a radioactive isotope disintegrates into another nuclear form. Half-lives vary from billionths of a billionth of a second to billions of years. Also called physical or radiological half-life. 

Biological half-life - the time an organism takes to eliminate one half the amount of a compound or chemical on a strictly biological basis

Effective half life - incorporates both the radioactive and biological half-lives. It is used in calculating the dose received from an internal radiation source.
« Last Edit: Nov 28, 2005, 11:04 by Rennhack »

Offline Rennhack


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