This work explores the application of the liquid scintillation counting of polycarbonates for measurement of the activity concentration of radioactive noble gases. Results from experimental studies of the method are presented. Potential applications in the monitoring of radioactive noble gases are discussed.
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http://dx.doi.org/10.1016/j.apradiso.2014.01.021 | DOI Listing |
J Hazard Mater
October 2023
Gannan Normal University, China. Electronic address:
Uranium recovery is of great significance for managing environmental contamination, improving the utilization rate of uranium resources, reducing the pressure of nuclear fuel supply and building a closed-loop nuclear fuel cycle system. However, most of the current adsorbents are limited in practical application due to their poor selectivity in highly acidic environments (pH = 1). Here, we present a powerful uranium recovery strategy with combined ligand complexation, chemical reduction and photoreduction based on metal-free cyclization-modulated conjugated microporous polymers (CMPs).
View Article and Find Full Text PDFJ Environ Radioact
December 2024
Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA, 99354, USA. Electronic address:
Algorithms that estimate the location, time, and magnitude of a point-source atmospheric release using remotely sampled air concentrations typically use data for a single chemical or radioactive isotope. A Bayesian algorithm is presented that uses data from multiple radioactive isotopes that are all released in the same short-duration event. Data from noble gas and aerosol samplers can be used simultaneously in the model.
View Article and Find Full Text PDFJ Comput Chem
December 2024
Mulliken Center for Theoretical Chemistry, Clausius-Institute of Physical and Theoretical Chemistry, University of Bonn, Bonn, Germany.
The development of novel methods in solid-state quantum chemistry necessitates reliable reference data sets for their assessment. The most fundamental solid-state property of interest is the crystal structure, quantified by the lattice parameters. In the last decade, several studies were conducted to assess theoretical approaches based on the agreement of calculated lattice parameters with respect to experiment as a measure.
View Article and Find Full Text PDFIsotopes Environ Health Stud
August 2024
Department of Physics "Ettore Pancini", University of Naples Federico II, Naples, Italy.
Radon is a radioactive noble gas omnipresent in the environment, being part of the U and Th decay chains present in the Earth's crust. The gas can easily leak through the ground but also be present in natural construction materials and migrate into indoor places where it can be a carcinogen when inhaled. Studying the content and removal of indoor radon is crucial for the evaluation and mitigation of its radiological risks to public health.
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