The study was performed in two areas of Sweden respectively with high natural radioactivity background (County of Jämtland), and high Cs deposition area deriving from Chernobyl fallout (County of Uppsala). Aims of the study were the calculation of activity concentration and transfer factors for all 6 radionuclides in the two areas and analysis of influence of soil characteristics on radionuclid...

Cerenkov luminescence imaging (CLI) is an emerging hybrid modality that utilizes the light emission from many commonly used medical isotopes. Cerenkov radiation (CR) is produced when charged particles travel through a dielectric medium faster than the speed of light in that medium. First described in detail nearly 100 years ago, CR has only recently applied for biomedical imaging purposes. The ...

Phosphogypsum (PG) is a residue of the phosphate fertilizer industry that has relatively high concentrations of harmful radioactive materials. The reduction in concentration of the radionuclides from PG was investigated. The removal process is based on leaching of radionuclides using suitable organic extractants. The studied radionuclides were 226Ra, 210Pb, 238U and 40K. The factors affect the ...

Soil inventories of anthropogenic radionuclides were investigated in altitudinal transects in 2 French regions, Savoie and Montagne Noire. Rain was negligible in these 2 areas the days after the Chernobyl accident. Thus anthropogenic radionuclides are coming hypothetically only from Global Fallout following Atmospheric Nuclear Weapon Tests. This is confirmed by the isotopic signatures ((238)Pu/...

Soil-plant-man is recognized as a major pathway for the transfer of radionuclides to human beings [(Safety Series, No. 57 (IAEA 1982)]. The radioactivity of environmental samples from sites and products suspected of contamination must be investigated before free access to them is given to the public (Owono 2010). Radionuclides in soils are frequently transferred to different plant tissues by di...

Publication in this issue of The Journal of Nuclear Medicine of the article by Cescato et al. (1) prompts some considerations on receptorguided tumor targeting with radionuclides. The term receptor-guided tumor targeting includes several techniques implying the direct and selective transportation of specific diagnostic or therapeutic radiolabeled peptides on cell-bound molecular targets, such a...

Treatment of waste streams containing radionuclides, the remediation of contaminated materials, soils, and water, and the safe and economical disposal of radionuclides and toxic metals containing wastes is a major concern. Radionuclides may exist in various oxidation states and may be present as oxide, coprecipitates, inorganic, and organic complexes depending on the process and waste stream. U...

Introduction: Investigation on the natural radionuclides 238U, 232Th, 40K and natural fallout radionuclide 210Po in the prominent plants species of Western Ghats tropical forest near Kotagiri have been carried out as a part of baseline background radiation studies in the forest environment. Materials and Methods: The prominent plants species of the region Evodia roxburghiana and Eleaocarpus obl...