The half-life of Cs137 was found to be 30.4 ± 0.4 years by determining the amount of Ba137 produced in various times from a known number of Cs137 atoms. The numbers of barium and cesium atoms were determined from isotope dilution data obtained with a mass spectrometer....
Biological half-lifeFreshwater fishJapanese daceOne-compartment modelRadiocesium contaminationRearing experimentJapanese dace Tribolodon hakonensis rearing experiments were conducted to estimate parameters related to 137 Cs uptake and excretion processes. Fish (initial mean total length 256mm, 136g) were ...
The half-life of Cs137 The β-decay half-life of Cs 137 has been obtained from a specific activity measurement. The disintegration rate was measured in a "4π"-type proportional ... F Brown,GR Hall,AJ Walter - 《Journal of Inorganic & Nuclear Chemistry》...
On the other hand, the biological halflife of 137Cs were found in the range 19.727.1 days in the laboratory experiment. The bioelimination process was... S Topcuoglu,AM Van Dowen - 《Toxicological & Environmental Chemistry Reviews》 被引量: 20发表: 1997年 On the Biological Half-Life of ...
We can calculate the mass released using Avogadro’s number and the concept of a mole if we can first find the number of nucleiNreleased. Since the activityRis given, and the half-life of137Cs is found in Appendix B to be 30.2 y, we can use the equationR=0.693Nt1/2R=0.693Nt1/2to...
Zibold, GPROHL, G.; EHLKEN, S.; FIEDLER, I.; KIRCHNER, G.; KLEMT, E.; ZIBOLD, G.; (2006). Ecological Half-lives of Sr-90 and Cs-137 in Terrestrial and Aquatic Ecosystems, Journal of Environmental Radioactivity 91, P. 41-72...
TEPCOs Fukushima Daiichi Nuclear Power Plant (FDNPP) accident of March 2011 caused the discharge of a considerable quantity of radionuclides, including Cs-137. Because of its long half-life (30.17 years), the fate of Cs-137 in the marine biota is of great interest. This study aims to eval...
RELATIONSHIP OF $sup 137$Cs HALF-LIFE IN HUMANS TO BODY WEIGHT LL Eberhardt - 《Health Physics》 被引量: 9发表: 1967年 Determination of $sup 243$Am half-life VG Polyukhov,GA Timofeev,PA Privalova,... 被引量: 1发表: 1974年 HALF-LIVES OF ISOMERIC STATES IN Pb$sup 202$, Pb$sup ...
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to the stable 137Ba isotope. 137mBa is selectively "milked" from the generator, leaving behind the 137Cs parent. The generator can be used to measure the half-life of the 137mBa sample through measurement of the emitted 662 keV gamma rays. Experiment 5 Guide: 1. Position the sample (...