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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
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 since 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. local time 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.”
M.J. Wood, W.J.G. Workman
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 529-535
Safety; Measurement and Accountability; Operation and Maintenance; Application | doi.org/10.13182/FST92-A29801
Articles are hosted by Taylor and Francis Online.
A field trial in which outdoor air was sampled with an active reference sampler and several passive HTO-in-air samplers simultaneously was carried out at Chalk River Laboratories. Both passive and active samplers were changed on an approximately monthly schedule from 1990 September 2 to 1991 April 18. Average temperatures for the sampling intervals ranged from −8.6°C to +15.5°C and HTO-in-air concentrations measured by the active sampler were typically 10 Bq/m3. A total of 129 passive HTO-in-air sampler measurements were made during the seven sampling intervals. The passive samplers used for the field trial were of the type described by Stephenson,1 prepared with either tritium-free water or a solution of 50% tritium-free water and 50% ethylene glycol. As expected, the samplers prepared with the water-glycol solution performed more consistently than the samplers prepared with water only. Good agreement between passive and active sampler measurements was observed throughout the field trial. Passive samplers were found to be suitable for outdoor tritium-in-air sampling with a significant reduction in effort over traditional active samplers. However, passive samplers can not obtain the sensitivity of conventional active HTO-in-air samplers.