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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Nuclear Science and Engineering
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A closer look at NRC’s proposed rule eliminating ALARA
On July 1, the Nuclear Regulatory Commission proposed removing the “as low as reasonably achievable” (ALARA) principle from its radiation protection regulations and replacing it with a graded approach. The agency also proposed increases to effluent dose limits and adjusting how it handles allowances for exceeding dose limits.
Technical Session|Methods Development
Monday, July 21, 2025|10:00AM–12:05PM EDT|Gulf Room
Session Chair:
Matthew A. Jessee
Alternate Chair:
William C. Dawn
Session Organizer:
Scott P. Palmtag
To access paper attachments, you must be logged in and registered for the meeting.
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Peacock: A Monte Carlo Transport Code with Depletion for Reactor Modeling
10:00–10:25AM EDT
William C. Dawn (Studsvik), Charles Wemple (Studsvik)
Paper
Studsvik's Core Management System 5: Overview and Recent Developments
10:25–10:50AM EDT
R. Ferrer (Studsvik), J. Hykes (Studsvik), T. Bahadir (Studsvik), G. Grandi (Studsvik), T. Simeonov (Studsvik), J. Rhodes III (Studsvik)
Sensitivity Study of Epithermal Resonance Up-scattering Using the SCALE/Polaris-PARCS Code Procedure for LWR Physics Analysis
10:50–11:15AM EDT
Kang-Seog Kim (ORNL), William A. Wieselquist (ORNL)
A Low-memory Eigenvalue Sensitivity Calculation Method for Deterministic Neutron Transport
11:15–11:40AM EDT
Rufus Neame (Univ. Cambridge), Paul Cosgrove (Univ. Cambridge)
SCALE 6.3 Enhancements to the Polaris Lattice Physics Code for Light-Water Reactor Confirmatory Analysis
11:40AM–12:05PM EDT
Matthew A. Jessee (ORNL), Ugur Mertyurek (ORNL), Kang Seong Kim (ORNL), Shane W. D. Hart (ORNL), Andrew M. Holcomb (ORNL), Jin Whan Bae (ORNL), Byoung Kyu Jeon (ORNL), William A. Wieselquist (ORNL)
