Geochemical behavior of uranium and thorium in sand and sandy soil samples from a natural high background radiation area of the Odisha coast, India
Sign Up to like & getrecommendations! Published in 2020 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-020-09370-3
Abstract: Owing to their natural radioactivity, uranium (U) and thorium (Th) play significant roles in environmental sciences for monitoring radiation dose and in geological sciences for understanding sedimentary processes. The Odisha coastal area, in eastern India,… read more here.
Keywords: uranium thorium; high background; area; soil ... See more keywords
Selective Complexation and Separation of Uranium(VI) from Thorium(IV) with New Tetradentate N,O-Hybrid Diamide Ligands: Synthesis, Extraction, Spectroscopy, and Crystallographic Studies.
Sign Up to like & getrecommendations! Published in 2023 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c04384
Abstract: An unmet challenge in the thorium-uranium fuel cycle is the efficient separation of uranium from thorium. Herein, two new tetradentate N,O-hybrid ligands, N,N'-diethyl-N,N'-di-p-tolyl-2,2'-bipyridine-6,6'-dicarboxamide (Et-Tol-BPDA) and N,N'-diethyl-N,N'-di-p-tolyl-2,2'-bipyrimidine-4,4'-dicarboxamide (Et-Tol-BPymDA), comprising a bipyridine or bipyrimidine core and amide… read more here.
Keywords: uranium thorium; thorium; spectroscopy; extraction ... See more keywords
Synthetic Strategies for the Synthesis of Ternary Uranium(IV) and Thorium(IV) Fluorides.
Sign Up to like & getrecommendations! Published in 2018 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.8b00570
Abstract: A series of new U(IV) and Th(IV) fluorides, Na7U6F31 (1), NaUF5 (2), NaU2F9 (3), KTh2F9 (4), NaTh2F9 (5), (H3O)Th3F13 (6), and (H3O)U3F13 (7), was obtained using hydrothermal and low-temperature flux methods. Mild hydrothermal reactions with… read more here.
Keywords: thorium fluorides; uranium thorium; strategies synthesis; synthesis ternary ... See more keywords
DETERMINATION OF URANIUM AND THORIUM SURFACE DISTRIBUTION IN GEOLOGICAL SAMPLES: COMPARISON OF TABLETOP MACRO AND MICRO-XRF SCANNING.
Sign Up to like & getrecommendations! Published in 2022 at "Radiation protection dosimetry"
DOI: 10.1093/rpd/ncac114
Abstract: This paper describes the identification and quantification of uranium, thorium and other chemical elements in a low-grade uranium ore, using macro and micro-X-ray fluorescence scanning. The result of such scanning is their surface distribution determined… read more here.
Keywords: uranium thorium; xrf scanning; micro xrf; micro ... See more keywords
Determination of the Galaxy age by the method of uranium–thorium–plutonium isotopic ratios
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Atomic Nuclei"
DOI: 10.1134/s1063778817040202
Abstract: The dependence of the Galaxy age (ТG), as determined by the method of uranium–thorium isotopic ratios, on the parameters of the nucleosynthesis model is studied within the theory of galactic nucleosynthesis. It is shown that… read more here.
Keywords: method uranium; uranium thorium; age; galaxy age ... See more keywords
Ab initio calculations of uranium and thorium storage in CaSiO3-perovskite in the Earth’s lower mantle
Sign Up to like & getrecommendations! Published in 2017 at "American Mineralogist"
DOI: 10.2138/am-2017-5816
Abstract: Abstract Earth’s mantle convection is powered in part by the radiogenic heat released by the decay of 238U, 235U, 232Th, and 40K. We present ab initio calculations of uranium and thorium incorporation in CaSiO3-perovskite with… read more here.
Keywords: casio3 perovskite; lower mantle; casio3; uranium thorium ... See more keywords
Determination of uranium and thorium contents in various material samples of Morocco using a new Monte Carlo code for evaluating the mean critical angle of etching of the CR-39 and LR-115 type II SSNTDs.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of environmental radioactivity"
DOI: 10.2139/ssrn.4278657
Abstract: In this paper an original Monte Carlo code for calculating the mean critical angle of etching of the CR-39 and LR-115 type II solid state nuclear track detectors SSNTD have been developed in order to… read more here.
Keywords: material; uranium thorium; critical angle; mean critical ... See more keywords
Long Term Application of Fertilizers in Eastern Amazon and Effect on Uranium and Thorium Levels in Soils
Sign Up to like & getrecommendations! Published in 2021 at "Minerals"
DOI: 10.3390/min11090994
Abstract: In recent years, the use of fertilizers has increased in the Amazon. Phosphate fertilizers, which are commonly used, can present high concentrations of radioelements. In the present study, the activity concentrations of uranium (U) and… read more here.
Keywords: long term; oil palm; black pepper; uranium thorium ... See more keywords
Uranium, Thorium, Potassium, and Cesium Radionuclides Concentrations in Desert Truffles from the Governorate of Samawah in Southern Iraq.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of food protection"
DOI: 10.4315/0362-028x.jfp-18-138
Abstract: Studies have been conducted in some southern Iraqi governorates to measure the radioactive contamination in the soil and have revealed that these areas are contaminated with radioactive materials. In these test sites, where many military… read more here.
Keywords: desert truffles; thorium potassium; potassium cesium; uranium thorium ... See more keywords