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Abstract:
Neutrons are neutral. When used as a probe for materials study they have great advantages in strong penetration, isotopic discrimination, great sensitivity for light elements as well as magnetic sensitivity. Neutron scattering techniques have made undisputed important contributions to the study of structure and dynamics of materials in many different scientific fields. Neutrons can also be polarized and polarized neutrons have profound applications in the study of particle physics, cosmology and astrophysics. In this talk I will start with brief introduction of neutron sources and the China Spallation Neutron Source, followed by the background, history, applications of fundamental neutron physics. I’ll also discuss polarized neutron techniques.
Biography:
Xin Tong, Senior Scientist with Institute of High Energy Physics and Professor of University of Chinese Academy of Sciences. Dr. Tong obtained his Ph.D in physics from Indiana University in 2008. For the next 10 years he worked in both the reactor and spallation neutron sources at the Oak Ridge National Laboratory. In 2018 he joined the Institute of High Energy Physics and the China Spallation Neutron Source, heading the polarized neutron and sample environment group. He has worked in the field of polarized neutrons for more than 15 years, covering fields in atomic physics, neutron physics, condensed matter physics and fundamental neutron physics. He has received several Significant Event Awards from ORNL, and he is a recipient of the Li Foundation Heritage Prize for “Scholarly Development”. He is also the PI of a National Key Research and Development Project.