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Any element possessing radioactivity.

radioactive element

(1) A nonspecific term for any element that emits alpha or beta particles or gamma radiation. 
(2) Radionuclide, see there.


(rā″dē-ō-ĕl′ĕ-mĕnt) [″ + elementum, a rudiment]
Any of the radioactive elements.
References in periodicals archive ?
This was consistent with 6F, representing the Meander Plain, which had intermediate radioelement K (0.9%) as a function of the co-dominant illite.
5d) respectively, even though some high trace of these radioelements can be marked within the formation.
Figure 8b defined 8 spectrometric domains with similar gamma radiometric signatures, classified consistent with the concentration of the radioelements K, eU and eTh.
The structures interpreted through gamma ray spectrometry are shallower than those interpreted from the magnetic data and are coupled with contrasting values of the measured radioelements, which may represent areas of structural weakness.
11) by using Arc Spatial Data Modeler (ArcSDM), The first step to map regions with high radioelements values that coincide with elevated mafic/ultramafic rocks.
Various combinations of the gammaray data channels can be classified using an unsupervised classification algorithm to produce a thematic map of radioelement domains (classes) that show a distinct statistical separation (Fig.
Ratio maps, including ternary K-U-Th colour presentations, are useful but, in the absence of corresponding radioelement concentration maps, are ambiguous.
Broome, J., Carson, J.M., Grant, J.A., and Ford, K.L., 1987, A modified ternary radioelement mapping technique and its application to the south coast of Newfoundland: Geological Survey of Canada, Paper 87-14, scale 1:100 000.
International Atomic Energy Agency, 2003, Guidelines for radioelement mapping using gamma ray spectrometry data: International Atomic Energy Agency, TECDOC-1363, 173 p.
In addition, the effect of "ordered water layers" will contribute to make difficult the access of water and transported radioelements to the mineral walls of the void space.
If the most adverse conditions in a HLW repository are imagined and the established multi-barrier system fails, the radioelements could be mobilised from the canisters and transported trough the rock-mass.
Among them, the capacity for water and radioelements to flow into the rock matrix from hydraulically active fractures, and the corresponding water pathways, is one of the main aspects to be considered.