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Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
Isaac Saldivar, Sudarshan K. Loyalka
Nuclear Technology | Volume 204 | Number 2 | November 2018 | Pages 172-183
Technical Paper | doi.org/10.1080/00295450.2018.1470865
Articles are hosted by Taylor and Francis Online.
Applications of aerosol dynamics include modeling cloud formation and pollution in atmospheric sciences, inhalation and radiation doses in health physics, and particle transport and contamination in nuclear safety. To improve the fidelity of computed aerosol evolution to realistic process models and phenomena, efforts have been directed at the use of the Direct Simulation Monte Carlo (DSMC) technique. This paper first verifies the results obtained from the DSMC technique against a known analytical solution of a specialized case in which the evolution of a purely growing aerosol is coupled to its environment. Next, it applies the DSMC technique to the evolution of aerosol particles undergoing condensation, coagulation, and deposition as coupled to the environment.