PMI/PCCM SEMINAR SERIES SPRING 2023: Yong Chu, Brookhaven National Laboratory

Feb 22, 2023, 12:00 pm1:00 pm
Bowen Hall Auditorium 222


Event Description

Nanoscale X-ray Imaging: Why and How

Abstract: Compared to electrons and visible light, x-rays have a much deeper penetrating power into materials.   The strong penetration power, in conjunction with the wavelength at the atomic scale, makes x-rays useful for a broad spectrum of applications from 3D imaging to crystallography and spectroscopy.  On the other hand, the weak interaction of x-rays with matter, responsible for the excellent penetrating property, makes it extremely difficult to produce x-ray lenses required for building x-ray microscopes with nanometer resolution.  The presentation will focus on how a high brightness x-ray source like NSLS-II is needed to build powerful x-ray microscopes and how these microscopes are used for performing cutting-edge x-ray imaging experiments.

Bio: Yong Chu is a beamline scientist at the National Synchrotron Light Source II within the Brookhaven National Laboratory.  He also serves as the program manager for the imaging and microscopy beamlines at NSLS-II, managing the operation of five beamlines with active general user programs.  Yong received a B.S. degree in physics from the California Institute of Technology in 1989 and a Ph.D. in physics from the University of Illinois at Urbana-Champaign in 1997.  After completing his postdoctoral training, Yong worked as a beamline scientist at the Advanced Photon Source near Chicago.  In 2009, he took a physicist position at Brookhaven National Laboratory to lead the designing and construction of the Hard X-ray Nanoprobe Beamline, which still holds the record of the highest x-ray imaging resolution since its first operation in 2014.  Yong’s expertise includes x-ray imaging, x-ray optics, x-ray diffraction, and synchrotron instrumentation.

All seminars are held on Wednesdays from 12:00 noon-1:00 p.m. in the Bowen Hall Auditorium Room 222. A light lunch is provided at 11:30 a.m. in the Bowen Hall Atrium immediately prior to the seminar.