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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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Nuclear Science and Engineering
January 2026
Nuclear Technology
December 2025
Fusion Science and Technology
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.
Technical Session|Fuel Cycle and Other Applications
Tuesday, April 23, 2024|1:30–3:15PM PDT|Continental Ballroom 1
Session Chair:
Satoshi Gunji (Japan Atomic Energy Agency)
Alternate Chair:
Donny Hartanto (ORNL)
Session Organizer:
Go Chiba (Hokkaido University)
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SCALE 6.3.1 Radiation Source Terms and Shielding Analysis for a Postulated Sodium-Cooled Fast Reactor Accident Scenario
1:30–1:50PM PDT
G. Radulescu (ORNL), D. Hartanto (ORNL), F. Bostelmann (ORNL), W. Wieselquist (ORNL)
Paper
An Open Source Multiphysics Workflow for the Analysis of Fusion Driven Systems
1:50–2:10PM PDT
Matthew J. Nyberg (Univ. Wisconsin, Madison), Joseph T. Eickman (Univ. Wisconsin, Madison), Patrick C. Shriwise (ANL), Ben A. Lindley (Univ. Wisconsin, Madison)
Theory of Neutron Multiplicity Counting in an Energy-Dependent Transport Model
2:10–2:30PM PDT
Victor Dykin (Chalmers Univ. Technology), Senada Avdic (Univ. Tuzla), Imre Pázsit (Chalmers Univ. Technology)
Presented by Paolo Vinai (Chalmers Univ. Technology)
Development of a Steady State Reactor Physics Surrogate Model for the Idaho State University AGN-201 Digital Twin Using MOOSE
2:30–2:50PM PDT
Quinton J. Williams (Oregon State), Ryan H. Stewart (INL), Todd S. Palmer (Oregon State), Camille J. Palmer (Oregon State), Chad Pope (Idaho State), Ashley Shields (INL), Christopher Ritter (INL)
Sub-Pin Fission Product Sensitivity to Assembly and Core Models on High-Burnup Fuel and Comparison to Experimental Measurements
2:50–3:10PM PDT
Andrew Conant (ORNL), Mehdi Asgari (ORNL), Aaron Graham (ORNL), Greg Balco (LLNL)
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