32 citations · 110 across the 15 of their papers we have counts for
15 papers
Neutron Scattering Cross-Section Correction Incorporating Neutron Wavelength Effects
Karrie E. An, Guan-Rong Huang, Changwoo Do +1
This study outlines a numerical methodology aimed at rectifying the neutron scattering cross-sections of fundamental elements across a range of low neutron energies typically emplo…
Spatial correlations of entangled polymer dynamics
Jihong Ma, Jan-Michael Y. Carrillo, Changwoo Do +6
The spatial correlations of entangled polymer dynamics are examined by molecular dynamics simulations and neutron spin-echo spectroscopy. Due to the soft nature of topological cons…
A Machine Learning Inversion Scheme for Determining Interaction from Scattering
Chi-Huan Tung, Shou-Yi Chang, Jan-Michael Carrillo +3
We outline a machine learning strategy for determining the effective interaction in the condensed phases of matter using scattering. Via a case study of colloidal suspensions, we s…
Characterizing Hydration of SDS Micelles by Contrast Variation Small Angle Neutron Scattering
Katherine Chen, Chi-Huan Tung, Changwoo Do
Small-angle neutron scattering (SANS) from cationic globular micellar solutions composed of sodium dodecyl sulfate (SDS) and in water was studied with contrast variation approach.…
Accelerating Neutron Scattering Data Collection and Experiments Using AI Deep Super-Resolution Learning
Ming-Ching Chang, Yi Wei, Wei-Ren Chen +1
We present a novel methodology of augmenting the scattering data measured by small angle neutron scattering via an emerging deep convolutional neural network (CNN) that is widely u…
Evolution of CTAB/NaSal Micelles: Structural Analysis by SANS
Christopher N. Lam, William D. Hong, Changwoo Do +1
Surfactants are amphiphilic molecules that spontaneously self-assemble in aqueous solution into various ordered and disordered phases. Under certain conditions, one-dimensional str…
Influence of Side Chain Isomerism on the Rigidity of Poly(3-alkylthiophenes) in Solutions Revealed by Neutron Scattering
William D. Hong, Christopher N. Lam, Yangyang Wang +5
Using small angle neutron scattering, we conducted a detailed structural study of poly(3-alkylthiophenes) dispersed in deuterated dicholorbenzene. The focus was placed on addressin…
Scaling Behavior of Anisotropy Relaxation in Deformed Polymers
Christopher N. Lam, Wen-Sheng Xu, Wei-Ren Chen +12
Drawing an analogy to the paradigm of quasi-elastic neutron scattering, we present a general approach for quantitatively investigating the spatiotemporal dependence of structural a…
Strain Heterogeneity in Sheared Colloids Revealed by Neutron Scattering
Kevin Chen, Bin Wu, Guan-Rong Huang +2
Recent computational and theoretical studies have shown that the deformation of colloidal suspensions under a steady shear is highly heterogeneous at the particle level and demonst…
Dynamic Equivalence between Soft Star Polymers and Hard Spheres
Zhe Wang, Antonio Faraone, Panchao Yin +5
Understanding the dynamics of soft colloids, such as star polymers, dendrimers, and microgels, is of scientific and practical importance. It is known that the excluded volume effec…
Corrections for the Geometric Distortion of the Tube Detectors on SANS Instruments at ORNL
Lilin He, Changwoo Do, Shuo Qian +4
The small-angle neutron scattering instruments at the Oak Ridge National Laboratory High Flux Isotope Reactor recently upgraded the area detectors from the large, single volume cro…
Scattering from Star Polymers including Excluded Volume Effects
Xin Li, Changwoo Do, Yun Liu +4
In this work we present a new model for the form factor of a star polymer consisting of self-avoiding branches. This new model incorporates excluded volume effects and is derived f…
Influence of Molecular Solvation on the Conformation of Star Polymers
Xin Li, Lionel Porcar, Luis E. Sánchez-Diáz +7
We have used neutron scattering to investigate the influence of concentration on the conformation of a star polymer. By varying the contrast between the solvent and isotopically la…
Dynamical Crossover in Soft Colloids below the Overlap Concentration
Xin Li, Luis E. Sánchez-Diáz, Bin Wu +8
The dynamics of soft colloids in solutions is characterized by internal collective motion as well as center-of-mass diffusion. Using neutron scattering we demonstrate that the comp…
Understanding inelastically scattered neutrons from water on a time-of-flight small-angle neutron scattering (SANS) instrument
Changwoo Do, William T. Heller, Christopher Stanley +3
It is generally assumed by most of the small-angle neutron scattering (SANS) user community that a neutrons energy is unchanged during SANS measurements. Here, the scattering from…