ABSTRACT
Polarized neutron experimental technology is one of the key technologies for the independent construction and development of spallation neutron sources, providing essential experimental support for neutron diffraction, inelastic neutron scattering, and large-scale structural characterization at spallation sources. Currently, the polarized neutron technology at the China Spallation Neutron Source (CSNS) relies on the already constructed helium-3 neutron spin filter devices, magnetic field control systems, and radiofrequency flip equipment, enabling experimental applications in neutron reflectometry, small-angle neutron scattering, and imaging. Research and development for applications in diffraction and inelastic spectrometers are also underway. Alongside the construction of critical equipment, the study of polarized neutron experimental technology has also advanced data analysis methods for polarized neutron experiments.
In this report, we will briefly introduce the existing experimental equipment for polarized neutrons at the CSNS and their current applications in polarized neutron experiments on various neutron spectrometer beamlines. The report will also provide an overview of emerging experimental techniques, including polarized neutron imaging and wide-angle polarization analysis, which are expected to enable new experimental measurements in the coming years.
BIOGRAPHY
Wang Tianhao is an Associate Researcher and Doctoral Supervisor at the Institute of High Energy Physics, Chinese Academy of Sciences, and a recipient of the CAS Talent Award. He earned his undergraduate degree from the Department of Physics at the University of Science and Technology of China and obtained his Ph.D. in Physics from Indiana University, USA, in 2016. Following his doctoral studies, he worked at the Spallation Neutron Source of Oak Ridge National Laboratory in the United States. In 2019, he returned to China and joined the China Spallation Neutron Source (CSNS), where he currently serves as the head of the polarized neutron system for the CSNS Phase II project and as a Doctoral Supervisor. His primary research focus is on the development of polarized neutron experimental technologies. He has published over 20 papers in the fields of particle physics and nuclear physics experimental methods and has led several major research projects, including those under the NSFC.
Date & Time
Venue
Chair