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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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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January 2026
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November 2025
Latest News
DNFSB spots possible bottleneck in Hanford’s waste vitrification
Workers change out spent 27,000-pound TSCR filter columns and place them on a nearby storage pad during a planned outage in 2023. (Photo: DOE)
While the Department of Energy recently celebrated the beginning of hot commissioning of the Hanford Site’s Waste Treatment and Immobilization Plant (WTP), which has begun immobilizing the site’s radioactive tank waste in glass through vitrification, the Defense Nuclear Facilities Safety Board has reported a possible bottleneck in waste processing. According to the DNFSB, unless current systems run efficiently, the issue could result in the interruption of operations at the WTP’s Low-Activity Waste Facility, where waste vitrification takes place.
During operations, the LAW Facility will process an average of 5,300 gallons of tank waste per day, according to Bechtel, the contractor leading design, construction, and commissioning of the WTP. That waste is piped to the facility after being treated by Hanford’s Tanks Side Cesium Removal (TSCR) system, which filters undissolved solid material and removes cesium from liquid waste.
According to a November 7 activity report by the DNFSB, the TSCR system may not be able to produce waste feed fast enough to keep up with the LAW Facility’s vitrification rate.
18th International Probabilistic Safety Assessment and Analysis (PSA 2023)
Technical Session|PSA Analyses: Methods and Applications
Wednesday, July 19, 2023|1:00–2:45PM EDT|300B
Session Chair:
Alexander J. Huning (ORNL)
Alternate Chair:
Askin Guler Yigitoglu (ORNL)
Session Organizer:
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Quantifying the Likelihood of Nuclear Supply Chain Shortage Risk
1:00–1:25PM EDT
Priyanka Pandit (NCSU), Arjun Earthperson (NCSU), Daniel Nevius (NCSU), Mihai Diaconeasa (NCSU)
Paper
Availability Evaluation of HP-STMCs Space Nuclear Reactor Power System
1:25–1:50PM EDT
Xinyan Xu (Univ. Science and Technology of China), Changhong Peng (Univ. Science and Technology of China)
Probabilistic Safety Assessment Methodology for the Transportation of Radioactive Material
1:50–2:15PM EDT
Manorma Kumar (Polytechnic Univ. Catalonia), Guillem Cortes-Rossell (Polytechnic Univ. Catalonia)
Presentation Slides (Visible to Attendees) — pdf
Risk-Informed Opportunities and Challenges for Microreactors
2:15–2:40PM EDT
Alexander J. Huning (ORNL), David E. Shropshire (INL), Efe Kurt (INL)
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