نتایج جستجو برای: atmospheric radioactivity
تعداد نتایج: 87968 فیلتر نتایج به سال:
The nuclear reactors in normal or accidental operation due to error in safety system or natural hazards disperse radioactive material on the around public. Assessment of the Relative Risk (RR) and Probability Caution (PC) for personal and population around the reactor sites is essential for the reactor safety and environmental protection. It has been assumed radioactivity release from the 5 MW ...
The assessment of the absorbed doses around the nuclear reactors in normal operation and emergency condition is urgent for nuclear reactors safety. In this study the total effective dose equivalent (TEDE) for public and personnel for active molybdenum powder discharge from the 5 MW Tehran Research Reactor (TRR) due to human error using HOTSPOT 2.07 health physics code was evaluated. It was assu...
This study aims at analysing the performance of European Radiological Data Exchange Platform (EURDEP) identifying, delineating, and tracking different radioactivity clouds moving across a territory. To this purpose, atmospheric dispersion 21 hypothetical STs, calculated by Modular Accident Analysis Program (MAAP) code, has been simulated under same meteorological scenario JAVA-based RODOS decis...
In the studies of radiological assessment, 137Cs is the most important radioactive contaminant, produced from the atmospheric bomb tests, discharges from nuclear reprocessing plants and the Chernobyl reactor accident. The systems most commonly used for the in situ monitoring of γ-radiation in seawater, are based on NaI(Tl) detectors, which are characterized by high detection efficiency and low ...
The concentrations of 239þ240Pu and Cs in zooplankton and nekton in the Northwest Pacific and Southern Oceans were measured during the period 1993–1996. The object of the sampling was to assess the potential impacts of existing submerged anthropogenic-radioactive materials in the western North Pacific as well as the East China Sea. Samples from the Bransfield Strait of the Antarctic Ocean provi...
In this work, we systematically study the two-proton($2p$) radioactivity half-lives using two-potential approach while nuclear potential is obtained by Skyrme-Hartree-Fock with Skyrme effective interaction of {SLy8}. For true $2p$ radioactivity($Q_{2p}$ $>$ 0 and $Q_p$ $< $0, where $Q_{2p}$ are released energy one-proton two-proton radioactivity), standard deviation between experimental our the...
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