ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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
NRC restores expiration dates for renewed Turkey Point licenses
The Nuclear Regulatory Commission announced this week that it has restored the expiration dates of the Turkey Point nuclear power plant's units 3 and 4 subsequent license renewals (SLR) to July 19, 2052, and April 10, 2053, respectively.
F.-Y. Tsai, E. L. Alfonso, S.-H. Chen, D. R. Harding
Fusion Science and Technology | Volume 38 | Number 1 | July 2000 | Pages 83-89
Technical Paper | Thirteenth Target Fabrication Specialists’ Meeting | doi.org/10.13182/FST00-A36121
Articles are hosted by Taylor and Francis Online.
Spherical polyimide (PMDA-ODA) shells with high aspect ratio (OD = 900 to 1020 μm and wall thickness = 0.7 to 8.0 μm) were successfully fabricated by the vapor deposition method. These shells were characterized in terms of gas permeability, Young’s modulus, tensile strength, and ultimate elongation. The measured properties of the shells agreed with those of commercial films (Kapton®). Post-coating treatments of the shells, including thermal imidization in air and biaxial expansion, effectively increased gas permeability. Air-curing resulted in shells that were more brittle and twice as permeable as those cured in nitrogen. Since no difference in chemical composition was found between the N2- and air-cured shells, the effect of air-curing may be attributed to morphological or microstructural changes due to oxygen or water vapor in air. Shells that were expanded plastically showed over 300-fold increase in gas permeability, while retaining half of the original Young’s modulus. The effect of expansion on permeability may have arisen from localized plastic deformation. Both treatments will be useful for preparing ICF targets that allow a rapid fill with DT fuel for cryogenic experiments.