ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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
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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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
S. Ohdachi, F. Watanabe, S. Yamamoto, K. Toi, C. Suzuki, K. Ida, S. Muto, LHD Experiment Group
Fusion Science and Technology | Volume 58 | Number 1 | July-August 2010 | Pages 418-425
Chapter 8. Diagnostics | Special Issue on Large Helical Device (LHD) | doi.org/10.13182/FST10-A10827
Articles are hosted by Taylor and Francis Online.
Several types of diagnostic system for soft X-ray radiation (SXR) have been developed and installed on the Large Helical Device (LHD). Magnetohydrodynamic (MHD) activities are studied by the fluctuation component of SXR, and the electron temperature is measured from the spectrum of the SXR. PIN photodiode arrays are installed at three poloidal cross sections to study the equilibrium and fluctuations. The spatial resolution of an array is a few centimeters, and its frequency response is up to [approximately]300 kHz. Absolute extreme ultraviolet diode arrays are also used for lower-energy radiation, and edge MHD instabilities are thereby studied. There are tangentially viewing two-dimensional soft X-ray camera systems by which more detailed spatial structure can be studied. Radial profile of X-ray spectrum is measured by X-ray pulse height analyzer systems.