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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.
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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Fusion Science and Technology
Latest News
Fermilab center renamed after late particle physicist Helen Edwards
Fermi National Accelerator Laboratory’s Integrated Engineering Research Center, which officially opened in January 2024, is now known as the Helen Edwards Engineering Center. The name was changed to honor the late particle physicist who led the design, construction, commissioning, and operation of the lab’s Tevatron accelerator and was part of the Water Resources Development Act signed by President Biden in December 2024, according to a Fermilab press release.
D. Mandal, M. Vinjamur, D. Sathiyamoorthy
Fusion Science and Technology | Volume 62 | Number 2 | October 2012 | Pages 333-338
Technical Paper | doi.org/10.13182/FST12-A14624
Articles are hosted by Taylor and Francis Online.
Angle of repose and angle of internal friction are two important macroscopic parameters in characterizing granular materials and reliable flow index in fluidization studies. This paper presents an experimental study to measure the angular properties, namely, angle of repose and angle of internal friction of lithium titanate (Li2TiO3) and silica particles. Lithium titanate is a primary contender for the solid breeder material for fusion reactors. Experimental results showed that the angle of repose of fine Li2TiO3 particles increases with increase in particle size, whereas the angle of internal friction decreases with increase in particle size. It was observed that the angle of repose varies in the range 31.7 to 35.62 deg, whereas angle of internal friction varies in the range 74.3 to 76.3 deg. A relationship between angle of repose and angle of internal friction for Li2TiO3 has been established. These results are useful to understand the flow characteristics of Li2TiO3 particles in a gas fluidized bed.
