decay series


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Related to decay series: uranium decay series

decay series

[di′kā ‚sir·ēz]
(nuclear physics)
References in periodicals archive ?
Analysis of produced fluids for alpha-particle emitting radionuclides in the [sup.238]U [sup.232]Th decay series ([sup.210]Po, [sup.228]Th, [sup.230]Th, [sup.234]U, [sup.235]U, [sup.238]U) was conducted by preconcentration and isotope dilution alpha spectrometry.
This might be expected since these values depend on the activity concentration levels [sup.238]U and [sup.232]Th decay series and [sup.40]K in the soil and these were found to be almost the same in surface and subsurface soil, except for [sup.137]Cs, which is expected to be higher in the surface soil.
Applications of organic N material should be timed to provide mineralized N when it will be needed by the crop, a condition that is hard to evaluate using decay series. A better choice in this case is a continuous decay function that predicts the production of plant-available nitrogen (PAN).
Properties of four natural decay series of actinides [2] Series Initial Half-life, Stable nuclide years endmember Thorium [sup.232]Th 1.405 x [10.sup.10] [sup.208]Pb Neptunium [sup.237]Np 2.140 x [10.sup.6] [sup.209]Bi Uranium [sup.238]U 4.470 x [10.sup.9] [sup.206]Pb Actinium [sup.235]U 7.038 x [10.sup.8] [sup.207]Pb Table 2.
They report their research or review the literature on such topics as using composite electrodes in the analysis of drinking water, voltametric and amperometric determination of organic pollutants using boron doped diamond film electrodes, groundwater toxicity due to natural dissolved radionuclides belonging to the uranium and thorium decay series, lessons from field studies in India on the solar disinfection of drinking water, and the impact of low turbidities in the sanitary quality of exploited water.