نتایج جستجو برای: caesium
تعداد نتایج: 816 فیلتر نتایج به سال:
Large amounts of radioactive material were released from the Fukushima Daiichi nuclear plant in Japan, contaminating the local environment. During the early stages of such nuclear accidents, iodine I-131 (half-life 8.02 d) is usually detectable in the surrounding atmosphere and bodies of water. On the other hand, in the long-term, soil and water contamination by Cs-137, which has a half-life of...
1. A compound of hyaluronate and protein, called hyaluronate-protein was isolated from pooled human synovial fluids by caesium chloride density-gradient ultracentrifugation. 2. The isolated hyaluronate-protein was labelled with [(125)I]iodide and the following studies were done. (a) Ultracentrifugation in caesium chloride showed that the protein moiety ((125)I counts) and hyaluronate (hexuronat...
This topical review gathers the last updates concerning caesium-free negative ion sources presented during $$63{\mathrm {rd}}$$ Course of International school Quantum Electronics Ettore Majorana Foundation and European collaborative works related to these lectures. Hence, beyond frame this course addresses both theoretical experimental work performed few years complexities represented by concep...
Isotopes that may contaminate crops Fallout may be made up of a hundred or more active isotopes but only a few of them are likely to be harmful as crop contaminants. Iodine. As 1311, it will be a major hazard for a few weeks after fallout arrives. Chamberlain & Chadwick (1953) showed that iodine gas is deposited on grass by diffusion. Chamberlain, Loutit, Martin & Russell (1955) note that, in f...
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