G. A. Skorobogatov

Water treatment with mineral sorbents to remove 137Cs

The performance of certain rocks (shungite, vermiculite, montmorillonite) in chemical water treatment is evaluated. Vermiculite packing ensures high efficiency of water decontamination from 137Cs.

Consequences of 241Am α-decay in some solid matrices

The valence states of “hot” 237Np atoms arising from α-decay of 241Am atoms incorporated in quenched melts of alkali metal nitrates or sorbed on ion-exchange materials were studied by emission Mössbauer spectroscopy.

Use of neutron activation analysis for evaluating the efficiency of water treatment to remove heavy metal ions by zone freezing

The efficiency of zone freezing for potable water treatment to remove inorganic impurities was examined. The content of impurities in model solutions before and after zone freezing was evaluated by neutron activation analysis with the formation of 56Mn, 116mIn, and 198Au radionuclides. The zone freezing procedure is the most efficient at low ice front velocities (no greater than 0.15 cm h−1).

Influence of the chemical form of cobalt-57 sources on the conversion probability of the 14.4-keV gamma transition

219 Internal conversion electron (ICE) spectroscopy in conjunction with emission Mössbauer spectroscopy (EMS) can provide important information on the population of electron shells of atoms in various chemical compounds. However, a limited number of relevant studies have been performed so far [1–4]. The reason behind this is high requirements for the source of low energy electrons. The source must be a thin (preferably, carrier free) layer of a radioactive material deposited on a conductive substrate with a small effec tive Z. The substrate should be chemically inert with respect to the radioactive substance to be deposited. The substance must have a stable chemical form that is reliably identifiable, for example, by emission Möss bauer spectroscopy.

Effect of extranuclear factors on the probability of the \(^{121m_2 } Te \to ^{121m_1 } Te\) radioactive decay

The nuclear isomer \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}

New Experimental Data on the Influence of Non-Nuclear Factors on the Radioactive Decay Probability

^{121m_2 } Te

Rate constants for reactions in iodine laser active medium:a review

\end{document} was synthesized at a cyclotron by the (d,2n) reaction and then incorporated into the MgO ceramic. This γ-ray source was stored either at 78 or at 298 K. The measured γ-radiation intensity ratio, R = (Φ573 keV/Φ212 keV), at 78 K appeared to be higher by a factor of 1.0012 ± 0.0002 than at 298 K. The temperature dependence of R is caused by the low-temperature increase in the “constant” λ2 of the \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}