نتایج جستجو برای: radioactive 90sr
تعداد نتایج: 21292 فیلتر نتایج به سال:
The objective of this study is the implementation of a method combining extraction chromatography and liquid scintillation counting (LSC) technique to the determination of 90Sr in milk samples. The strontium separation is performed using the commercially available Sr-resin (Eichrom) and the beta counting is carried out using a liquid scintillation detector system (Tri-Carb 3170 TR/SL, Packard)....
The Semipalatinsk area is highly contaminated with radioactive fallout from 40 years of continuous nuclear testing. The biological effects on human health in this area have not been studied. Significant remaining radioactivities include long-lived radioisotopes of 238,239,400Pu, 137Cs and 90Sr. To evaluate the long-term biological effects of the radioactive fallout, the incidence of micronuclei...
A research programme sponsored by the German Federal Ministry for the Environment, Nature Protection and Nuclear Safety (BMU) was conducted during 1992 and 1993 in the Southern Urals, to provide an initial validation and comparison of results of population exposure arising from the release of radioactive waste from the MAYAK nuclear facility between the years 1948 and 1967. This programme inclu...
Artificial 90Sr is one of the most important long-lived radionuclides global radioactive fallout from atmosphere after testing nuclear weapons and accident at Chernobyl Nuclear Power Plant in 1986. In addition to atmosphere, secondary contamination Crimea was mainly Dnieper River North Crimean Canal, which occurred until 2014. used as optimal radiotracer for estimating rate sedimentation hypers...
The transfer, from soil to Chinese cabbage and spinach, of radioactive strontium-90 released as a result of accidents in nuclear power stations was studied using a stable isotope of strontium, namely nuclide strontium-88 (88Sr). The study led to an experimental model for assessing the hazard of radionuclide strontium-90 (90Sr) entering the food chain and for predicting the risk to food safety. ...
The paper presents the results of our study on 238Pu, 239Pu, 240Pu, 241Am and 90Sr concentration in human bones carried out on a set of 88 individual samples of central Europe origin. Bone tissue samples were retrieved under surgery while introducing hip joint implants. The conducted surgeries tend to cover either southern or northeastern parts of Poland. While for the southern samples only glo...
Functional plastic scintillators have attracted much attention for their usefulness in on-site monitoring and detection environments. In this study, we elucidated a highly reliable functional scintillator of radioactive strontium, which means potent perovskite-loaded polymeric scintillation material based on epoxy 2,5-diphenyloxazole (PPO). Moreover, Monte Carlo N-Particle (MCNP) simulation was...
The purpose of the work was to investigate sorptive capacity natural clay samples with respect 90 Sr and 137 Cs assess possibility using these as components protective barriers at radioactive waste isolation facilities. Bentonite clays Zyryanskoye Desyaty Khutor deposits high-melting Kampanovskoye deposit were selected for investigation. sorption through ionic exchange is characterized by value...
The paperfocuses on an analysis of the results of long-term monitoring of the concentrations of 137Cs, 90Sr and 3H in hydrosphere in the vicinity of Temelín Nuclear Power Plant (Temelín plant). The radionuclides were monitored in surface water, river sediments, aquatic flora and fish species. The main objective of the study was to analyze and integrate all of the knowledge on concentrations and...
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