منابع مشابه
Discovery of the thallium, lead, bismuth, and polonium isotopes
Currently, forty-two thallium, forty-two lead, forty-one bismuth, and forty-two polonium isotopes have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented. ∗Corresponding author. Email address: [email protected] (M. Thoennessen) Preprint sub...
متن کاملEarly onset of ground state deformation in neutron deficient polonium isotopes.
In-source resonant ionization laser spectroscopy of the even-A polonium isotopes (192-210,216,218)Po has been performed using the 6p(3)7s (5)S(2) to 6p(3)7p (5)P(2) (λ=843.38 nm) transition in the polonium atom (Po-I) at the CERN ISOLDE facility. The comparison of the measured isotope shifts in (200-210)Po with a previous data set allows us to test for the first time recent large-scale atomic ...
متن کاملPolonium (²¹⁰Po), uranium (²³⁴U, ²³⁸U) isotopes and trace metals in mosses from Sobieszewo Island, northern Poland.
The activity of polonium (210)Po and uranium (234)U, (238)U radionuclides, as well as trace metals in mosses, collected from Sobieszewo Island area (northern Poland), were determined using the alpha spectrometry, AAS (atomic absorption spectrometry) and OES-ICP (atomic emission spectrometry with inductively coupled plasma). The concentrations of mercury (directly from the solid sample) were det...
متن کاملVery neutron-deficient polonium isotopes produced through 20 Ne induced reactions
2014 Neutron deficient polonium isotopes have been produced through 182W(20Ne, xn) reactions. The characteristics of disintegration of 194Po have been reviewed. Isotopes with masses 193 and 192 have been identified ; an isomeric state could be attributed to 193Po. Tome 38 N~ 20 15 OCTOBRE 1977 LE JOURNAL DE PHYSIQUE LETTRES
متن کاملThe Theory of Alpha Decay
One of the relatively simple physical processes that can be described successfully in the framework of introductory quantum theory is alpha decay. In this process, two protons and two neutrons out of a relatively large nucleus dissociate from the rest of the nucleus, form a separate subsystem and subsequently depart. In its full complexity, this process is not be describable, however a reasonab...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1951
ISSN: 0031-899X
DOI: 10.1103/physrev.83.390