题目:Radiation damage in the TEM
时间：2015年10月16日（本周五）上午9：30
地点：教十一413教室（四楼物理系教室）
High-angle elastic scattering of primary electrons produces knock-on damage in the form of the displacement of atoms from their lattice sites within a crystalline specimen, sputtering of atoms from the surface of a specimen, and radiation-enhanced diffusion of atoms along a surface. The inelastic scattering of primaries results in ionization damage (radiolysis), which dominates over knock-on damage in beam-sensitive (e.g. organic) specimens. We will discuss how these processes depend on the TEM accelerating voltage and other parameters, and how specimen damage can be minimized.
报告人介绍：
Ray Egerton FRSC, Emeritus Professor of Physics, University of Alberta,
Edmonton, Canada T6G 2E1. Home page: www.tem-eels.ca
Room 3-106, National Institute for Nanotechnology: (780) 641-1668
Receiving editor, MICRON journal: http://ees.elsevier.com/jmic/
Room 3-106, National Institute for Nanotechnology: (780) 641-1668
Receiving editor, MICRON journal: http://ees.elsevier.com/jmic/
备注： Egerton教授也是浙江大学材料学院电镜原位课程主讲教师
