Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table. It belongs to a special group of elements called “actinides” — elements that were discovered relatively late in history. Like all other act...
Uranium – a naturally occurring radioactive element – is one of the critical ingredients in decarbonizing the energy system and providing energy security. Since 2020, uranium prices have doubled due to a concentrated and insecure supply. Key takeaways - Generating nuclear power does not cause c...
Naturally occurring radioactive elements depend on lithology geogenic characteristics, such as depositional, environmental, or diagenetic. Thus, evaluating these elements constitutes a tool to define ionizing radiation effect from rocky sequences. This study carried out in the Rancheria Sub-Basin ...
However, naturally occurring radioactive elements tend to have a far greater concentration in black shales than in other sedimentary lithologies (Adams and Weaver, 1958), and thermal processing or chemical activation used to produce adsorbents may induce a release of these radionuclides into the ecosy...
One emerging concern is the risk of environmental contamination arising from unconventional wastes that are enriched in naturally-occurring radioactive materials (NORM). Although NORM has been a well-documented contaminant of oil and gas wastes for decades, there are new challenges associated with ...
From fitting the observed hyperfine components for both Ta 181 and the Ta 180 naturally occurring isomer it was possible to determine the first and second order hyperfine structure coefficients. As no model independent determination of the nuclear spin of the Ta 180 isomer has been performed, ...
The finding of naturally occurring curium in meteorites closes the loop opened 70 years ago by the discovery of manmade curium, and it provides a new constraint, which modelers can now incorporate into complex models of stellar nucleosynthesis and galactic chemical evolution to further understand how...
Radioisotope – an isotope that is radioactive Example: Carbon-14 Radioactive isotopes can be naturally occurring, or they can be produced by bombarding stable isotopes with high speed particles Stability All nuclei with atomic numbers greater than 83 are unstable They are...
*Further global warming (an upward trend in global mean temperature.) With the 20 warmest years occurring over the past 22 ... a consistent warming trend couldn’t be clearer (Climate Central).The world is now about 1.1C warmer than it was in the 19th Century - and the amount of CO2 ...
As was mentioned before, most building materials contain naturally occurring radioactive elements, the most important of which are40K, and members of two natural radioactive series, which can be represented by the isotopes of uranium238U (or radium226Ra) and thorium232Th. These two main decay ch...