ANS / Publications / Journals / Nuclear Science and Engineering

Deterministic High-Fidelity Neutronics Simulation of Pebble Bed Reactors Using Pebble Tracking Transport

Liam Carlson, Jean C. Ragusa, Paolo Balestra, Yaqi Wang

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S574-S594

Research Article / dx.doi.org/10.1080/00295639.2025.2471722

Selection of Sampling and Surrogate Modeling Methods for State-Point Evaluations of an AGN-201M Reactor

Quinton J. Williams, Ryan H. Stewart, Todd S. Palmer, Camille J. Palmer, Chad Pope, Ashley Shields, Christopher Ritter

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S391-S405

Research Article / dx.doi.org/10.1080/00295639.2025.2455908

Measurement of the Prompt Neutron Decay Constant in a Zero-Power Reactor Using a Novel 3D Detector System

Michel Saliba, Vincent Lamirand, Wilfried Monange, Fanny Vitullo, Mathieu Hursin, Andreas Pautz, Oskari Pakari

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S406-S414

Research Article / dx.doi.org/10.1080/00295639.2025.2456411

Time-Dependent Variants of The Random Ray Method for Transient Simulations

Maximilian Kraus, Paul Cosgrove, Eugene Shwageraus

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S415-S435

Research Article / dx.doi.org/10.1080/00295639.2025.2456413

Prediction of Exotic (n,2n) Cross Sections Using a Regression Tree Machine Learning Algorithm

Rohan Teelock-Gaya, Valeria Raffuzzi, Eugene Shwageraus, Lee Morgan

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S436-S455

Research Article / dx.doi.org/10.1080/00295639.2025.2456414

An Iterative RSA-DEM Method for High Particle Packing Fraction Stochastic Media

Zhe Chuan Tan, Zhi Yuan Feng, Kan Wang

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S456-S465

Research Article / dx.doi.org/10.1080/00295639.2025.2456895

A New Calculation Method Using Pathlines for Delayed Neutron Precursors in Liquid Nuclear Fuels

Mathis Caprais, André Bergeron, Nathan Greiner, Daniele Tomatis

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S466-S484

Research Article / dx.doi.org/10.1080/00295639.2025.2458345

Application of the Random Ray Method to Variance Reduction in Radiation Shielding Problems

Valeria Raffuzzi, Rufus Neame, Paul Cosgrove

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S485-S502

Research Article / dx.doi.org/10.1080/00295639.2025.2458958

Comparison of Analytical Models for Frequency Response and Linear Stability of Molten Salt Reactors

Lubomír Bureš

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S503-S526

Research Article / dx.doi.org/10.1080/00295639.2025.2460318

Hermes Reactor Demonstration, Initial Startup, and Physics Testing

Nader Satvat, Richard Hernandez, Fanny Vitullo, Kyrone Riley, Massimilliano Fratoni, Brandon Haugh, Edward Blandford

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S527-S537

Research Article / dx.doi.org/10.1080/00295639.2025.2462892

Uncertainty Analysis of the Reaction Rates in Ringhals

Jacob Persson

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S538-S545

Research Article / dx.doi.org/10.1080/00295639.2025.2464452

Coupled Adjoint-Based Perturbation Theory for Dynamics and Heat Transfer Multiphysics for Nuclear Transients

Alexis Maldonado, Christopher M. Perfetti

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S546-S564

Research Article / dx.doi.org/10.1080/00295639.2025.2465220

Neutron Noise Measurements of a Fast HEU Copper System

Cole Kostelac, Robert Weldon, Nicholas Whitman, Nicholas Thompson, Theresa Cutler, Kelsey Amundson, Ayodeji Alajo

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S565-S573

Research Article / dx.doi.org/10.1080/00295639.2025.2471240

A 2-D Physics Study for Understanding Moderator Temperature Coefficient of Burnable Absorber–Loaded Prismatic High-Temperature Helium-Cooled Reactor

Davide Bazzani, S. Wijaya, A. Cammi, Y. Kim

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S378-S390

Research Article / dx.doi.org/10.1080/00295639.2025.2455900

Development of Serpent/CTF External Coupling for the OECD/NEA TVA-WB1 Benchmark Activities

T. Albagami, P. Rouxelin, A. Abarca, S. Palmtag, M. Avramova, K. Ivanov

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S595-S610

Research Article / dx.doi.org/10.1080/00295639.2025.2475415

Material Composition Interpolation for High-Assay Low-Enriched Uranium Fuel Macroscopic Cross-Section Estimation Using Gaussian Process

Junsu Kang, Andrew M. Ward, Ugur Mertyurek, Thomas J. Downar

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S611-S624

Research Article / dx.doi.org/10.1080/00295639.2025.2494184

Parallel Simulated Annealing, Genetic Algorithms, and Hybrid Method Applied to the Multiobjective Optimization of the Nuclear In-Core Fuel Management

Wojciech Kubinski, Gianluca Giorgi, Mathieu Segond

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S625-S643

Research Article / dx.doi.org/10.1080/00295639.2025.2495520

Multiphysics Running-In Simulations for Pebble-Bed Reactors with Griffin

Joshua Hanophy, Paolo Balestra, Yaqi Wang, Javier Ortensi, Sebastian Schunert

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S644-S658

Research Article / dx.doi.org/10.1080/00295639.2025.2497025

Quantification and Propagation of Uncertainties in R-Matrix Limited Resonance Parameters

Pierre Sole, Vaibhav Jaiswal, Cédric Jouanne

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S659-S675

Research Article / dx.doi.org/10.1080/00295639.2025.2508040

Reactor Physics Modeling Challenges for the FLEX Reactor

Simon Boddington, Tom Taylor, Peter Haigh, Eduardo Cuoc, Chris Hankinson, Luke Godfrey

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S676-S692

Research Article / dx.doi.org/10.1080/00295639.2025.2524266

First Steps of the ANTARES Validation for Steady States with TVA Watts Bar Unit 1 Cycle 1 Benchmark

Franck Bernard, Sébastien Bonthoux, Marc Forestier, Antonio Sargeni, Julien Taforeau

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S693-S706

Research Article / dx.doi.org/10.1080/00295639.2025.2530299

An Optimization Approach to Improve Thermal Scattering Law Using Experimental Total Cross-Section Data

Vaibhav Jaiswal, Pierre Sole

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S707-S726

Research Article / dx.doi.org/10.1080/00295639.2025.2530301

Assessing the Impact of Improved Thermal Conductivity of UO₂-Mo Fuel Using the ENIGMA Fuel Performance Code

Aiden Peakman, Glyn Rossiter

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S727-S740

Research Article / dx.doi.org/10.1080/00295639.2025.2541338

First Results for Uranium Nitride Fuel Characterization Using an Accelerated Fuel Qualification Process

Zachary Miller, Landon Johnson, Lorena Alzate-Vargas, Jason Rizk, Christopher Matthews, Michael W. D. Cooper, Vedant Mehta, David A. Andersson, Galen T. Craven, Massimiliano Fratoni, Alex Levinsky

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S741-S753

Research Article / dx.doi.org/10.1080/00295639.2025.2567814

Development of New GPU-Optimized Reactor Physics Monte Carlo Code GREAPMC

Muhammad Rizwan Ali, Murat Serdar Aygul, Deokjung Lee

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S754-S769

Note / dx.doi.org/10.1080/00295639.2025.2502714

Stochastic Optimization to Find Optimum Beginning-of-Life Core Configuration of Stable Salt Reactor with Online Refueling

Seungug Jae, Won Sik Yang, Thanh Hua, Yan Cao, Tom Taylor, Luke Godfrey

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S198-S211

Research Article / dx.doi.org/10.1080/00295639.2024.2423131

Study of the Phenomena Affecting the Efficiency of the Fission Gas Removal System in the Fuel Circuit of a Molten Salt Reactor

M. Marone, P. Rubiolo, N. Capellan, J. Giraud

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S15-S38

Review Article / dx.doi.org/10.1080/00295639.2025.2455884

Squirrel: A MOOSE-Based App for Solving Point Kinetics in Molten Salt Reactors

P. Pfahl, A. Chambon, J. Groth-Jensen, B. Lauritzen

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S39-S51

Review Article / dx.doi.org/10.1080/00295639.2025.2494182

Impact of the Multigroup Velocity Approximation in the Evaluation of the Effective Neutron Lifetime

Giorgio Valocchi, Elias-Yammir Garcia-Cervantes, Laurent Buiron, Jean Tommasi

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S52-S62

Review Article / dx.doi.org/10.1080/00295639.2025.2515348

Real-Time State Estimation of Neutron Flux in Molten Salt Fast Reactors from Out-Core Sparse Measurements

Stefano Riva, Sophie Deanesi, Carolina Introini, Stefano Lorenzi, Antonio Cammi

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S63-S76

Review Article / dx.doi.org/10.1080/00295639.2025.2531477

A General Formulation of the Resonance Spectrum Expansion Self-Shielding Method

Alain Hébert

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S77-S90

Research Article / dx.doi.org/10.1080/00295639.2024.2375908

Simplified Treatment of Coating Layers in TRISO Fuel in Statistical Geometry Method in Monte Carlo Calculation

Akio Yamamoto, Tomohiro Endo, Satoshi Takeda, Kazuya Yamaji, Hiroki Koike, Koji Asano

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S91-S104

Research Article / dx.doi.org/10.1080/00295639.2024.2384236

Linear Sources and Anisotropic Scattering in the Random Ray Method

Rufus Neame, Paul Cosgrove

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S105-S121

Research Article / dx.doi.org/10.1080/00295639.2024.2394729

Optimized Dropping and Rolling and Virtual Surface Method for High Packing Fraction of Dispersed Fuel Particles in Annular Container

Zhiyuan Feng, Jingang Liang, Wenli Guo, Kan Wang

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S122-S130

Research Article / dx.doi.org/10.1080/00295639.2024.2403896

Reactivity Impact of Updated ³⁵Cl Nuclear Data on the Molten Chloride Reactor Experiment

T. Cisneros, M. Wargon, B. Harper, K. Hanselman, T. Kawano, S. A. Kuvin, H. Y. Lee

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S131-S141

Research Article / dx.doi.org/10.1080/00295639.2024.2413787

Verification and Validation of the VANGARD Pinwise Nodal Code with Analyses of BEAVRS

Seoyoon Jeon, Brendan Kochunas

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S142-S165

Research Article / dx.doi.org/10.1080/00295639.2024.2421095

Improving the Resolution and Computational Efficiency of Depletion Simulations on a TRISO-Fueled Microreactor

Keenan J. Hoffman, Alexis Maldonado, Todd S. Palmer

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S166-S179

Research Article / dx.doi.org/10.1080/00295639.2024.2423124

Fuel Cycle Performance of the Wielenga Innovation Static Salt Reactor

Puran Deng, Won Sik Yang, Thomas Wielenga

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S180-S197

Research Article / dx.doi.org/10.1080/00295639.2024.2423129

Resonance Treatment of Double-Heterogeneous Fuel Using a Deterministic Statistical Geometry Method in Heterogeneous Transport Calculation Code GALAXY-Z

Kazuya Yamaji, Hiroki Koike, Koji Asano, Satoshi Takeda, Akio Yamamoto

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S1-S14

Review Article / dx.doi.org/10.1080/00295639.2024.2397259

Dynamics of Molten Salt Reactor with Operating Heaters

Thabit Abuqudaira, Pavel Tsvetkov, Piyush Sabharwall

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S212-S233

Research Article / dx.doi.org/10.1080/00295639.2024.2423132

Analytical Description of the Neutron Up-Scattering in the Resonance Range

A. Bengoechea, G. Noguere, D. Bernard, P. Tamagno

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S234-S244

Research Article / dx.doi.org/10.1080/00295639.2024.2439676

Welch Method and Bootstrapping Applied to Subcritical Gamma Noise

Flynn B. Darby, Schuyler J. Tyler, Oskari V. Pakari, Vincent P. Lamirand, Shaun D. Clarke, Andreas Pautz, Sara A. Pozzi

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S245-S252

Research Article / dx.doi.org/10.1080/00295639.2024.2445469

Temperature Prediction for the Sirius-2c Nuclear Propulsion Fuel Experiment Conducted at the TREAT Facility

Mustafa K. Jaradat, Sebastian Schunert, Frederick N. Gleicher, Mark DeHart

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S253-S269

Research Article / dx.doi.org/10.1080/00295639.2024.2445470

First Order Response Matrix Benchmark for the 1D Transport Equation with Matrix Scaling

B. D. Ganapol, J. K. Patel

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S270-S282

Research Article / dx.doi.org/10.1080/00295639.2024.2445987

A Genetic-Driven Optimization of the Energy Grid Structure for Nodal Full-Core Calculations in Lead-Cooled Fast Reactors

Nicolò Abrate, Alex Aimetta, Mattia Massone, Sandra Dulla, Piero Ravetto

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S283-S308

Research Article / dx.doi.org/10.1080/00295639.2024.2446130

Multistep Criticality Search and Power Shaping in Nuclear Microreactors with Deep Reinforcement Learning

Majdi I. Radaideh, Leo Tunkle, Dean Price, Kamal Abdulraheem, Linyu Lin, Moutaz Elias

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S309-S321

Research Article / dx.doi.org/10.1080/00295639.2024.2447012

Developing a Deterministic Calculation Scheme for Perturbations of In-Core Instrumentation of an MTR Core in Support of Bayesian Calibration

S. Lapaire, T. Bonaccorsi, J-M. Palau

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S322-S331

Research Article / dx.doi.org/10.1080/00295639.2025.2453787

Comparison of ²³⁸U and ²³⁵U Fission Chambers for Monitoring the Reactivity of the VENUS-F Accelerator-Driven Subcritical Reactor Using the Current-to-Flux Method

Nathalie Marie, Annick Billebaud, Sébastien Chabod, Anatoly Kochetkov, Antonin Krása, François-René Lecolley, Jean-Luc Lecouey, Grégory Lehaut, Nadia Messaoudi, Guido Vittiglio, Jan Wagemans

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S332-S341

Research Article / dx.doi.org/10.1080/00295639.2025.2453789

A Novel ERANOS Procedure for Sensitivity Analyses in Core Depletion Problems: Implementation Details and Verification

Matteo Stanzani, Donato M. Castelluccio, Francesco Lodi, Vincenzo G. Peluso, Giacomo Grasso, Marco Sumini

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S342-S365

Research Article / dx.doi.org/10.1080/00295639.2025.2455341

Assessment of the Influence of Secondary Sources on the Thermal-Hydraulic Behavior of FRM II Using Serpent 2 and Ansys CFX

Kaltrina Shehu, Daniel Bonete Wiese, Christian Reiter

Nuclear Science and Engineering / Volume 200 / Number 1S / March 2026 / Pages S366-S377

Research Article / dx.doi.org/10.1080/00295639.2025.2455348