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Division Spotlight
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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Latest News
Feinstein Institutes to research novel radiation countermeasure
The Feinstein Institutes for Medical Research, home of the research institutes of New York’s Northwell Health, announced it has received a five-year, $2.9 million grant from the National Institutes of Health to investigate the potential of human ghrelin, a naturally occurring hormone, as a medical countermeasure against radiation-induced gastrointestinal syndrome (GI-ARS).
Niranjan Gudibande, Kannan Iyer
Nuclear Technology | Volume 196 | Number 3 | December 2016 | Pages 674-683
Technical Paper | doi.org/10.13182/NT16-40
Articles are hosted by Taylor and Francis Online.
Radioactive materials are transported in hollow steel casks filled with lead. The lead in these casks can melt in an accidental fire during transportation leading to an increase in its volume. This plastically deforms the steel shell housing the lead. When the cask subsequently cools after the fire is extinguished, voids will form in the solidified lead. This work deals with the simulation of solidification with void formation in these transportation casks. In these simulations, one has to deal with solid-liquid and void-material interfaces. Solid-liquid movement during solidification is treated using a modified enthalpy method. The void that is formed in the solidified lead is assumed to be a vacuum. Consistent with this assumption, the boundary conditions of zero pressure and zero stress are imposed on the interface. The growth of the void is handled using the volume of fluid method. The methodology is first benchmarked by comparing the simulations with some experimental results available in the literature. Simulations are then performed for solidification in the transportation cask to study the effect of orientation on the void formation. A methodology is then developed to quantify the overall shielding effectiveness of the cask in terms of the total amount of radiation leaked.