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Updated: Jul 6, 2026

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
12:22

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films

Published on: November 9, 2015

在埃塞俄比亚奥莫盆地下部的普世/普世形成物上进行放射测年龄测定

F H Brown1, K R Lajoie

  • 1Department of Geology and Geophysics, University of California, Berkeley, USA.

Nature
|February 12, 1971
PubMed
概括

No abstract available in PubMed .

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Radioactive Decay and Radiometric Dating02:48

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Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.