As discussed in Chapter 1, the radioactivity of heavy atoms, embodied in the three processes of α-, β- and γ-decay, were early indicators of nuclear activity. With the production of many species of nuclei in their ground or excited states through nuclear reactions such decays have been ...
nuclei with mass number 190 to 219/ alpha decayisomer 213mRa209Bi( 10B,6n)gamma internal transitionslevel schemeshell model configurations12C+PbThe isomer 213m Ra was produced by the reaction 209 Bi( 10 B, 6 n ), as well as by bombardments of 12 C on Pb isotopes, 14 N on Bi, and...
RADIOACTIVE DECAY: understand radioactive decay. describe alpha, beta and gamma radiation? Atomic Theory and Radioactive Decay Natural background radiation exists all around us. This radiation consists of high energy particles or waves being emitted from a variety of materials. Radioac...
The level matrix corresponding to the {ital scrK}-matrix parametrization of a resonant nuclear reaction is derived and applied to the spectrum of {alpha} particles emitted following {sup 16}N {beta} decay. The parametrized spectrum is fitted to data simultaneously with the {ital E}1 capture ...
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We present a new, simplified analysis of the low-energy electron-positron interaction, and use the resulting effective theory to calculate the binding effects that contribute to the decay rate, Gamma, of orthopositronium, through Order(alpha^2 Gamma). We express the total decay rate in terms ...
The αγ linear polarization correlation coefficients of the 271 keV and 401 keV γ-transitions in the decay of 219Rn have been determined to be B 2 = 0.029±0.011, B 4 = 0.0147±0.0042; B 2 = -0.093 ± 0.0084, B 4 = 0.0130±0.0034, respectively. The 130 keV γ-271 keV γ ...
The photonuclear reaction 226Ra(γ,n)225Ra, followed by the beta decay of 225Ra to 225Ac is a different method for producing 225Ac by irradiating 226Ra. It is noticed that the photon energy cutoff for the reaction is 6.4 MeV. However, experimentally established cross-section data are not...
(198Au). The radioactive properties of198Au such the beta ray of 0.96 MeV and the component gamma ray of 411 KeV make it an ideal candidate for use in diagnosis and therapy.198Au functionalized with Gum arabic glycoprotein (GA) showed a therapeutic effect in a mouse prostate cancer model ...
The order ${\\\mathcal O} (\\\alpha \\\alpha_s m_t^2 /M_W^2)$ corrections to the partial decay rate of $\\\Gamma (Zo b\\\bar b)$ are computed using the heavy top mass expansion. They are given by the absorptive part of the corresponding three-loop Z self-energy diagrams....