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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
Shashi Kant Verma
Fusion Science and Technology | Volume 80 | Number 5 | July 2024 | Pages 623-635
Review Article | doi.org/10.1080/15361055.2023.2227839
Articles are hosted by Taylor and Francis Online.
Impurity behavior is investigated in the form of a single or multispecies pellet in a variety of fusion devices like Stellarator TJ-II, Large Helical Device, Experimental Advanced Superconducting Tokamak (EAST), etc. The impurity intentionally injected from the exterior into plasma is called a tracer impurity. The tracer can be used to trace the fluid path. This study aims to provide impurity elements used in polymer and fusion research by different researchers as well as present the progress of eminent activities with recent progress. The effects on plasma performance due to impurity injection are discussed. The impurity behavior in the plasma core is comprehensively investigated by the researchers, but their works are very limited in the cryogenic environment. As a substitute to this way, extrusion of a pellet made from a mixture of solid hydrogen and tracer element can be useful for fueling the fusion machine. Some of the mathematical models and equations assist to determine the various parameters in extrusion of the tracer mixed pellet. Investigation of the behavior of an impurity in hydrogen ice extrusion from a twin-screw extruder is crucial with respect to cryogenic restrictions.