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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Shifting the paradigm of supply chain
Chad Wolf
When I began my nuclear career, I was coached up in the nuclear energy culture of the day to “run silent, run deep,” a mindset rooted in the U.S. Navy’s submarine philosophy. That was the norm—until Fukushima.
The nuclear renaissance that many had envisioned hit a wall. The focus shifted from expansion to survival. Many utility communications efforts pivoted from silence to broadcast, showcasing nuclear energy’s elegance and reliability. Nevertheless, despite being clean baseload 24/7 power that delivered a 90 percent capacity factor or higher, nuclear energy was painted as risky and expensive (alongside energy policies and incentives that favored renewables).
Economics became a driving force threatening to shutter nuclear power. The Delivering the Nuclear Promise initiative launched in 2015 challenged the industry to sustain high performance yet cut costs by up to 30 percent.
Sunday, June 12, 2022|8:00AM–12:00PM PDT
Avila B
Requirements for Attendees: No requirements; however, attendees with SCALE 6.2 (or more recent) can participate in UQ demos, and attendees with SCALE 6.2.2 (or more recent) can participate in UQ & parametric studies demos.
Summary Paragraph: This tutorial will introduce the capabilities of the Sampler sequence, available starting in SCALE 6.2. The initial implementation of Sampler included uncertainty quantification (UQ) based on Monte Carlo sampling of multigroup nuclear data or input parameters in any SCALE sequence. The tutorial will touch on nuclear data sampling but will focus on UQ for input materials and geometry descriptions in criticality safety models. The Sampler sequence was expanded in the 6.2.2 update to include a parametric study capability. This capability is particularly useful for nuclear criticality safety evaluations and has been used extensively in recent work at Oak Ridge National Laboratory. Demonstrations of both the UQ and parametric capabilities will be included. Attendees with licensed copies of SCALE 6.2 installed on their devices will be able to follow along with presenters in the demonstrations.