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- Author or Editor: L. Daraban x
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Abstract
The evolution of Chernobyl103Ru,134Cs and137Cs in accumulated fallout is rigorously followed. The103Ru activity of about 12 kBq.m–2 in the middle of May 1986 became insignificant at the end of 1986, while the levels of134Cs and137Cs have changed during 3 years from 2.5 kBq.m–2, respectively, 5 kBq.m–2 to about 0.9 kBq.m–2, respectively 4.7 kBq.m–2 according to their proper half-lives.
Abstract
Twenty ancient silver coins have been analyzed by the X-ray fluorescence method. For eliminating the effects that disturb the absolute quantitative measurements, we calculated, for each coin, the ratio between the elements that constitute the coin and related them to the silver concentration. From these measurements correlation diagrams have been obtained in which coins are grouped together depending on the silver sources and the purification technologies.
Abstract
The cesium rarioactivity (owing to134Cs and137Cs) in a number of wild plants of phamaceutical interest harvested in Transylvania was followed during the 1986–1994 period. The data give information on major pathways of vegetable organism contamination through lives from fallout and resuspention and by root uptake from contaminated soil.
