نتایج جستجو برای: americium
تعداد نتایج: 384 فیلتر نتایج به سال:
Alpha-particle spectrometry is the most frequently used technique for the activity determination of alpha emitters, such as radium, uranium, plutonium, americium and thorium in environmental samples. In this paper an extensive uncertainty budget is presented for a typical alpha-particle spectrometry measurement of the Ra activity concentration in drinking water. The most influential parameters ...
This isotope of curium is radioactive and decays by the emission of an a-particle to form Pu2% which, in turn, is also radioactive. Cm242 has a half life of 150 days and its radioactive daughter, PUCK, has a half life of 50 years. This isotope of plutonium decays by the emission of an a-particle to form U234 which has a half life of 233,000 years. Shortly after the organization of the Atomic En...
Curium lies at the center of the actinide series and has a half-filled shell with seven 5f electrons spatially residing inside its radon core. As a function of pressure, curium exhibits five different crystallographic phases up to 100 gigapascals, of which all but one are also found in the preceding element, americium. We describe here a structure in curium, Cm III, with monoclinic symmetry, sp...
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