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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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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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.”
L. K. Mansur, Y. M. Charara, S. B. Guetersloh, I. Remec, L. W. Townsend
Nuclear Technology | Volume 166 | Number 3 | June 2009 | Pages 263-272
Technical Paper | 2007 Space Nuclear Conference / Radiation Protection | doi.org/10.13182/NT09-A8840
Articles are hosted by Taylor and Francis Online.
Calculations have been carried out to evaluate the effectiveness of a range of carbon- and hydrogen-rich materials for shielding against energetic heavy ions relevant to the galactic cosmic ray spectrum. Experimental work integrated with the calculations included both preparation and characterization of physical properties of candidate materials and measurements of fragmentation (breakup) of ion beams of 16O and 40Ar in the tens of GeV energy range in these materials. We have simulated the fragmentation experiments using both the HETC-HEDS and PHITS high-energy particle transport codes. The purposes of these computational simulations were to investigate the effectiveness as spacecraft personnel shielding of various novel as well as commercially available materials for future lunar and interplanetary missions and to validate the codes against experimental data. In the present contribution we report results of the fragmentation simulations and compare them with examples of the experimental measurements.