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First data acquired on the extended Q ‐range small‐angle neutron scattering (EQ‐SANS) diffractometer at the Spallation Neutron Source
Author(s) -
Liu Dazhi,
Hong Kunlun,
Gao Carrie Y.,
Melnichenko Yuri,
Littrell Ken,
Smith Greg,
Zhao Jinkui
Publication year - 2011
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889811034911
Subject(s) - small angle neutron scattering , neutron scattering , oak ridge national laboratory , spallation neutron source , neutron , scattering , nuclear physics , spallation , small angle scattering , radius of gyration , neutron time of flight scattering , neutron source , materials science , beamline , physics , optics , nuclear magnetic resonance , beam (structure) , polymer
Initial experimental results are reported from the extended Q ‐range small‐angle neutron scattering (EQ‐SANS) diffractometer at the Spallation Neutron Source at Oak Ridge National Laboratory (ORNL). A generation‐8 polyamidoamine dendrimer was measured and the conformation parameters (radius of gyration, thickness of the soft shell etc. ) extracted by model fitting to the scattering data. The results are compared with data collected at the general‐purpose small‐angle neutron scattering (GP‐SANS) beamline at the High‐Flux Isotopic Reactor at ORNL and show that EQ‐SANS is ready for scientific studies for the small‐angle neutron scattering community.