TY - JOUR
T1 - Wide angle spherical neutron polarimetry at oak ridge national laboratory
AU - Silva, Nicolas
AU - Wang, Tianhao
AU - Jiang, Chenyang
AU - Li, Fankang
AU - Debeer-Schmitt, Lisa
AU - Matsuda, Masaaki
AU - Ruff, Jillian
AU - Pynn, Roger
AU - Tong, Tony
AU - Winn, Barry
N1 - Publisher Copyright:
© Owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
PY - 2019
Y1 - 2019
N2 - Spherical Neutron Polarimetry (SNP) analyzes complex magnetic structures through distinguishing contributions from nuclear-magnetic interference and chiral structure in addition to nuclear magnetic scattering separation. This analysis is achieved through determining all components in the polarization transfer process. Currently, wide-angle SNP is being realized at Oak Ridge National Laboratory (ORNL) for multiple beamlines including: the polarized triple-axis spectrometer (HB-1) and general-purpose small angle neutron scattering instrument (CG-2) at the High Flux Isotope Reactor (HFIR), as well as the hybrid spectrometer (HYSPEC) at the Spallation Neutron Source (SNS). The SNP device consists of three units: incoming/outgoing neutron polarization, sample environment and a zero-field chamber. The incoming/outgoing neutron polarization regions use high-T_c superconducting YBCO films and mu-metal to achieve full control of neutron polarization. The sample environment is an evaporation refrigerator with a customized tail piece placed into the zero-field chamber. The device has been fully assembled and tested at the University of Missouri Research Reactor (MURR).
AB - Spherical Neutron Polarimetry (SNP) analyzes complex magnetic structures through distinguishing contributions from nuclear-magnetic interference and chiral structure in addition to nuclear magnetic scattering separation. This analysis is achieved through determining all components in the polarization transfer process. Currently, wide-angle SNP is being realized at Oak Ridge National Laboratory (ORNL) for multiple beamlines including: the polarized triple-axis spectrometer (HB-1) and general-purpose small angle neutron scattering instrument (CG-2) at the High Flux Isotope Reactor (HFIR), as well as the hybrid spectrometer (HYSPEC) at the Spallation Neutron Source (SNS). The SNP device consists of three units: incoming/outgoing neutron polarization, sample environment and a zero-field chamber. The incoming/outgoing neutron polarization regions use high-T_c superconducting YBCO films and mu-metal to achieve full control of neutron polarization. The sample environment is an evaporation refrigerator with a customized tail piece placed into the zero-field chamber. The device has been fully assembled and tested at the University of Missouri Research Reactor (MURR).
UR - http://www.scopus.com/inward/record.url?scp=85093851718&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85093851718
SN - 1824-8039
VL - 379
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 18th International Workshop on Polarized Sources, Targets, and Polarimetry, PSTP 2019
Y2 - 23 September 2019 through 27 September 2019
ER -