TPS次微米绕射光束线建造现况说明会.PDF

TPS次微米繞射光束線建造現況說明會 (The Current Status of Construction for TPS Sub-micro X-Ray Diffraction Beamline ) Haydn Chen Tunghai University 05/21/2011 Outline Background Part I The Beamline Design of Sub‐micron Diffraction Part II The Scientific Propose and End‐station Design Part III The Applications of Micro‐diffraction Contact Information Letter of Interest (LOI)  Among those, the micron size to even nano size beam for 3D structural microscopy is one of the advancing technology ...  It uses either polychromatic or monochromatic synchrotron x-rays with a focusing device utilizing Kirpatrick-Bias mirror. Diffraction images are recorded on a 2D CCD camera and the depth resolution can achieved using a differential aperture traversing along the surface of the specimen --(DAXM)  By analyzing images taken at different wire positions via some image reconstruction algorism, it yields information at different depths, thus enabling 3D information to be discerned.  White beam Laue patterns from x-ray microbeams provides local structure, orientation, and elastic strain tensors with 3D submicron spatial resolution. This is demonstrated by B. C. Larson et a. in Nature 415, 887 (2002)  Monochromatic DAXM techniques have been recently developed as well for measuring absolute lattice parameter with 3D. This is illustrated by Lyle E. Levine et al. in Nature Materials, 5, 619 (2006) Proposed Science (I)  X-ray Microscopy Study of Electronic Packaging Materials (Andre Lee)  Strain-stress, electromigration induced micro- and nano-structure, in-situ structure evolution under DC current  Studies on the Growth of Tin Whiskers (C. E. Ho)  Electronmigration and micro-scale whi