Phase-sensitive small-angle neutron scattering experiment.

Autor: Brok E; NIST Center For Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States of America.; Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, United States of America.; Now at: Nano Science Center, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark., Krycka KL; NIST Center For Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States of America., Vreeland EC; IR Dynamics, LLC, Albuquerque, NM 87109, United States of America.; Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, United States of America., Gomez A; Sandia National Laboratories, Albuquerque, NM 87185, United States of America., Huber DL; Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, United States of America., Majkrzak CF; NIST Center For Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States of America.
Jazyk: angličtina
Zdroj: Journal of physics communications [J Phys Commun] 2018; Vol. 2 (9).
DOI: 10.1088/2399-6528/aadf5f
Abstrakt: In the work reported herein, we investigate the practicality of a recently introduced variant of a general phase-sensitive method in small-angle neutron scattering that attempts to address the loss of phase-information as well as the orientational averaging simultaneously-through the use of reference structures in conjunction with finite element analysis. In particular, one possible physical realization of this approach is to employ polarized beams together with a magnetic reference connected to the sample object. We report on a first such practical implementation by successfully recovering the structure of a core-shell nanoparticle system.
Databáze: MEDLINE