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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
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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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.”
A. Ando, M. Inutake, K. Hattori, M. Shibata, Y. Kasashima (18R06)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 72-74
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1317
Articles are hosted by Taylor and Francis Online.
The ion cyclotron resonance heating and acceleration in a magnetic nozzle are performed in a fast-flowing plasma in the HITOP linear device in order to investigate an advanced space propulsion system. When radio-frequency (RF) waves are excited by a helically-wound antenna, plasma thermal energy W[perpendicular] and ion temperature drastically increase during the RF pulse. Thermal energy of the heated ion is converted its flow energy when the ions pass through a diverging magnetic nozzle. The plasma thermal energy changes so as to keep the magnetic moment constant. The exhaust plasma flow energy can be controlled by changing an input RF power only.