Speakers
Description
No, this tutorial is not about what you think! Playing on the famous 1969 book title [1], this session is an almost math-free, highly intuitive guide to Synchrotron Experiments with X-rays (S.E.X), inspired by the legendary 1995 paper by Prof. Giorgio Margaritondo on Synchrotron Emission of X-rays [2]. Think of a synchrotron light source as the ultimate scientific multi-tool for S.E.X. Depending on how light interacts with matter, we can use Absorption to see chemistry, Photoemission to track electronics, or Imaging to peer inside the material. But if you want to unlock the absolute blueprints of matter, the exact 3D arrangement of atoms, you need to understand the S.E.X. with Diffraction.
Because getting beamtime on S.E.X. facilities is rather difficult, in this hands-on tutorial, we will build a virtual synchrotron beamline from scratch right on your laptop PC with ray-tracing. Together, we will simulate S.E.X. with a bending magnet, double-crystal monochromator and focusing optics needed to measure a real diffraction "rocking" curve on a thin ferroelectric GeTe film. By comparing real data directly with dynamical diffraction calculations and related experimental broadening, you will see exactly how close a S.E.X. simulation can get to the real physical world, and what we can learn about it. Almost everything about X-ray dynamical theory can be found in ref. [3]. But be aware, this is not a textbook - it is way too heavy going; it's practically impossible to get it through, but don’t be afraid to ask, together we will make it.
Materials to download
All code, data, and materials for this hands-on session will be provided here.
References
[1] David Reuben. Everything You Always Wanted to Know About Sex (But Were Afraid to Ask), David McKay Company, (1969) isbn:0060192674
[2] Giorgio Margaritondo. A primer in synchrotron radiation: Everything you wanted to know about SEX (synchrotron emission of x-rays) but were afraid to ask. J. Synchrotron Radiat. 2, 148–154 (1995).
[3] Andre Authier, Dynamical Theory of X-Ray Diffraction Oxford Univ. Press 2003, isbn:9780198528920
