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Neutron research

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Displaying 1 - 25 of 930

Optimization Analysis Plan for the PRO-X and NCNR Collaboration on the NNS Research Reactor Project

September 29, 2026
Author(s)
Mohamed Elsawi, Carolyn Tomchik, Justin Thomas, Erik Wilson, Thad Heltemes, John Stevens, Abdullah Weiss, Osman Celikten, Jeremy Cook, Noura Elsalamouny, Thomas Newton
The National Institute of Standards and Technology (NIST), through the NIST Center for Neutron Research (NCNR), and the U.S. Department of Energy's National Nuclear Security Administration (NNSA), through Argonne National Laboratory, are collaborating to

Neutron spin echo spectroscopy

July 23, 2026
Author(s)
Antonio Faraone, Michihiro Nagao, O. Czakkel, P. Falus, B. Farago, P. Fouquet, I. Hoffmann, L. Stingaciu, P. Zolnierczuk, O. Holderer, T. Oda, Norman Wagner, G. Ehlers, J. Gardner
Neutron Spin Echo spectroscopy (NSE) is a powerful technique used to probe the internal dynamics and diffusion processes within matter, allowing researchers to quantify how materials respond to changes in external conditions. To fully understand the bulk

The Importance of Sub-nanosecond Relaxations on the Ballistic Impact Resistance of Cross-linked Thermoset Network Polymers

July 8, 2026
Author(s)
Christopher Soles, Katherine Evans, Polette Centellas, Adam Biacchi, Angela Hight Walker, Madhu Sudan Tyagi, Kanae Ito, Christian Yoon, Adam Burns, Timothy Sirk, Kevin Masser, Joseph Lenhart, Joseph Dennis, Kohei Sasaki, Naoyuki Shoji, Takefumi Yamashita, Hiroshi AKIBA, Yoshinori Ohmasa
This manuscript explores the importance of the collective, many atom relaxations that occur in cross-linked glassy polymer networks on the picosecond to nanosecond time scale on the mechanical toughness of these materials under ballistic rates of

Monte Carlo simulation and unfolding of an extended Bonner sphere system for secondary neutron spectrometry in proton therapy facilities using conventional BSS experimental data

April 12, 2026
Author(s)
Daniel Jardin, Adrian Diaz-Comeche, Sandra Oliver, Belen Juste, Mark Zakhary, Sina Mossahebi, Matthew Mille, Choonsik Lee, Rafael Miro, Gumersindo Verdu, Sergio Morato
The extended-range Bonner Sphere Spectrometer (BSS) is a valuable tool for characterizing neutron fields in radiotherapy, including proton therapy facilities, where secondary neutrons contribute to the incidental dose received by the patient and staff. In

The structure and morphology of single-component oligomeric RNA delivery vectors derived from amphiphilic Charge-Altering Releasable Transporters

November 6, 2025
Author(s)
Paul Hurst, Yuan Jia, Summer Ramsay-Burrough, Rebecca McClellan, Joshua Arens, Samuel Khasnavis, Trevor del Castillo, Mahmoud AbdElwakil, Michael Lueckheide, Vivek Prabhu, Robert Waymouth
Recent advances in nucleic acid delivery have been inspired by efforts to mimic the function of natural viruses through the development of self-assemblies capable of transporting oligonucleotides across the cell and endosomal membranes. Lipid nanoparticles

Feasibility Study of a Neutron-based Method for Field Measurement of Chloride in Concrete

September 30, 2025
Author(s)
Huaiyu Chen-Mayer, Shannon Hoogerheide, Aiysha Ashfaq, Jacob LaManna, Scott Jones, Mohamad Al-Sheikhly, Richard A. Livingston
Chloride in concrete is known to promote corrosion of the interior metal enforcement which leads to structural degradation. Chloride content monitoring is an important task for maintaining infrastructure integrity. The current industrial practice of

On neutron holography, neutron interferometry, and neutron orbital angular momentum

September 26, 2025
Author(s)
Wolfgang Treimer, Frank Hausser, Ingeborg Beckers, Suda Martin, Terrence Jach
A neutron Laue crystal interferometer has been reported by Saranac et al . to demonstrate neutron holography of a spiral phase plate. Using its two coherent beams as the object and reference beams, the resulting interference pattern was interpreted as a

Peristaltic Motion in Structurally Adaptive Molecular Crystals Enables Selective Propyne Capture

September 19, 2025
Author(s)
Yun Lin, Hayden Evans, Asif Raza, Sousa Nikkah, Xia Li, Michael Zaworotko, Matthias Vandichel, Soumya Mukherjee, Ognjen Miljanic
Cyclotetrabenzoin and its tetraacetate, two macrocyclic porous molecular crystals, were examined as adsorbents for light hydrocarbons, with a particular focus on C3 hydrocarbons: propane, propene, and propyne. While both materials exhibit a preference for

PMSE Centennial: Celebration of Success and New Frontiers in Polymer Materials Science and Engineering

September 18, 2025
Author(s)
Mellissa Grunlan, LaShanda Korely, Qinghuang Lin, Christopher Soles, Rigorberto Advincula, Arthi Jayaraman, Elizabeth Cosgriff-Hernandez, Elsa Reichmanis, Jodie Lutkenhaus, Rodney Priestly, Bridgitte Voit, Thomas Epps
In 2024, the American Chemical Society (ACS) Division of Polymeric Materials: Science and Engineering (PMSE) marked celebrated its centennial. This historic occasion was marked at the 2024 Spring ACS Meeting in New Orleans with a Centennial Symposium

Structural and Dynamical Behaviors of Fast Ionic Conducting Potassium nido -(Carba)borates

August 21, 2025
Author(s)
Mads B. Amdisen, Hui Wu, Mikael S. Andersson, Mirjana Dimitrievska, Wei Zhou, Torben R. Jensen, Craig Brown, Juscelino Leao, Terrence J. Udovic
Solid-state batteries are one of the most recent iterations of electrochemical energy storage, and the technology can potentially provide safer and more-energy-dense batteries. The metal closo- and nido-(carba)borates show promise as versatile solid

Poly-Arginine Tails and Helical Segments of Natural Antimicrobial Peptides Display Concerted Action at Membranes for Enhanced Antimicrobial Effects

July 8, 2025
Author(s)
Navleen Kaur, Kinjal Mondal, Megan Mitchell, Sarala N. Padi, Jeffery B. Klauda, Antonio Cardone, Frank N. Heinrich, Christina Harris, David Giles, Mary Rooney, Erik Watkins, Myriam Cotten, David Hoogerheide, Mihaela Mihailescu
Sequence motifs or patterns found in natural antimicrobial peptides (AMPs) have a great impact on their microbicidal activities. Here, through database inquiries and biological assays, we explore the enhanced antibacterial function associated with poly

A Comparison of Bulk with Micro-Volume Elemental Values for NIST SRM 610 and NIST SRM 612

June 26, 2025
Author(s)
Nicholas Sharp, Maria Isabel Vega Martinez, Ruthmara Corzo, Blaza Toman, Rick Paul, Jamie Weaver
NIST SRM 610 and 612 (Trace Elements in Glass) are routinely used for microanalytical measurements but were designed to be bulk-scale reference materials. This study investigates an approach to quantify the differences between values for elements obtained

Quasi-Elastic Neutron Scattering on Bimodal Dynamics in Molecular Solutions of Cellulose

June 23, 2025
Author(s)
Tao Xiong, Madhu Sudan Tyagi, Wei Zhou, Hongyu Guo, Robert Briber, Howard Wang
Local dynamics in molecular solutions of cellulose have been studied using quasi-elastic neutron scattering on ternary mixtures of microcrystalline cellulose, ionic liquid 1-ethyl-3-methyl-imidazolium acetate and co-solvent dimethylformamide. Two distinct

Solution Conformation Differences between Conventional and CENP-A Nucleosomes are Accentuated by Reversible Deformation under High Pressure

June 12, 2025
Author(s)
Kushol Gupta, Nikolina Sekulic, Praveen Allu, Nicholas Sapp, Qingqiu Huang, Kathryn Sarachan, Mikkel Christensen, Reidar Lund, Susan N. Krueger, Joseph E. Curtis, Richard Gillilan, Gregory Van Duyne, Ben Black
Solution-based interrogation of the physical nature of nucleosomes has its roots in X-ray and neutron scattering experiments, including those that provided the initial observation that DNA wraps around core histones. In this study, we performed a

An Autonomous Agent for Soft Material Structural Optimization and Discovery

June 6, 2025
Author(s)
Tyler Martin, Austin McDannald, Aaron Kusne, Peter Beaucage
The pace of formulation (re)development and design is rapidly increasing as both consumers and new legislation demand products that do less harm to the environment while maintaining high standards of performance. To meet this need, we have developed an

SEC-SAXS/MC Ensemble Structural Studies of the Microtubule Binding Protein Cdt1 Show Monomeric, Folded-Over Conformations

June 1, 2025
Author(s)
Kyle Smith, Srinivas Chakravarthy, Manas Chakraborty, Kristen M. Vosberg, Marco Tonelli, Maximilian G. Plach, Arabela A. Grigorescu, Joseph E. Curtis, Dileep Varma
Cdt1 is a mixed folded protein critical for DNA replication licensing and it also has a "moonlighting" role at the kinetochore via direct binding to microtubules and the Ndc80 complex. However, it is unknown how the structure and conformations of Cdt1

Sensitivity Study of Operating Conditions and Liquid Water Transport Behavior in an AEMFC Aided by Modeling and Neutron Radiography

June 1, 2025
Author(s)
Mrittunjoy Sarker, Felipe Mojica, Ami Neyerlin, Bryan Pivovar, Daniel Hussey, Jacob LaManna, David Jacobson, Po-Ya Chuang
Two types of anion exchange ionomers, powder and dispersion, are studied in this work. The gas diffusion electrode (GDE) with the dispersion-type ionomer exhibits strong hydrophobicity, thus not enabling sufficient ionic exchange during the potassium

Elongated particles in flow: commentary on small-angle scattering investigations

May 23, 2025
Author(s)
Guan-Rong Huang, Lionel Porcar, Ryan Murphy, Yuya Shinohara, Yangyang Wang, Jan-Michael Carrillo, Bobby G. Sumpter, Chi-Huan Tung, Lijie Ding, Changwoo Do, Wei-Ren Chen
This work thoroughly examines several analytical tools, each possessing a different level of mathematical intricacy, for the purpose of characterizing the orientation distribution function of elongated objects under flow. Our investigation places an

Scattering Insights into Shear-Induced Scission of Rod-like Micelles

May 15, 2025
Author(s)
Guan-Rong Huang, Ryan Murphy, Lionel Porcar, Chi-Huan Tung, Changwoo Do, Wei-Ren Chen
Hypothesis: Understanding the scission of rod-like micelles under mechanical forces is crucial for optimizing their stability and behavior in industrial applications. This study investigates how micelle length, flexibility, and external forces interact
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