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Workshops

Workshops schedule

For details please contact: workshops@xafs2018.com

Conference and social programme registration

Workshop on Advances in XAFS Experimental
Techniques: Bridging The Light Source Generations

Organized by

Hiroyuki Oyanagi (KEK)

July 22, 2018, 9:00-16:20
Limited to 100 participants

An Introduction to XAFS Data Analysis
with Athena and Artemis (and Larch)

Presented by

Matt Newville (U Chicago) and Mauro Rovezzi (CNRS/ESRF)

July 22, 2018, 9:00-16:00
Limited to 50 participants

Hands-on workshop
on spectroscopy with FEFF and DFT

Organized by

Joshua J. Kas (University of Washington)

July 22, 2018, 9:00-14:00
Limited to 50 participants

Hands-on workshop on spectroscopy
with GNXAS/RMC/GuI

Organized by

Andrea Di Cicco (University of Camerino)

July 22, 2018, 9:00-14:00
Limited to 40 participants

Workshop on Advances in XAFS Experimental Techniques: Bridging The Light Source Generations

Organized by Hiroyuki Oyanagi (KEK)

July 22, 2018, 9:00-16:20
Limited to 100 participants

Scope

Currently, we are witnessing the emergence of a new chapter of the history of x-ray light sources, i.e., the 4th generation light sources (4th GEN LSs) which embrace both XFELs and ultra-low emittance synchrotron radiation storage rings owing to a novel multi-bend achromat (MBA) lattice design started from MAXIV. It is anticipated that XAFS research will take a leap forward by these advanced LSs, greatly improving experimental limitations and opportunities of new experiments such as coherent x-ray spectroscopy.

Although fundamental XAFS techniques remain unchanged, it is also required that some critical issues should be overcome before exploiting the full potential of the advanced LSs. In this workshop, experimental challenges and scientific opportunities of the 4th GEN LSs will be discussed by experts. The workshop program is planned to “bridge the different generations” of experimental facilities and instrumentations, which would allow researchers to understand the capabilities of the 4th GEN LSs and get ready for entering into the new scientific opportunities beyond the present limitations.

Invited talk slot includes a discussion time. A panel discussion is devoted to a summary discussion on scientific opportunities of the 4th GEN LSs.

Tentative schedule

09:00XAFS Opportunities at the 4th GEN Light Sources, Konstantin Klementiev (MAXIV)
09:35XAFS for real-time chemical speciation at SLS 2, Maarten Nachtegaal (SLS)
10:10Hands-on data analysis / Coffee Break
10:40Advanced XAS Opportunities at ESRF-EBS, Sakura Pascarelli (ESRF)
11:15Future of RIXS at ESRF-EBS, Pieter Glatzel (ESRF)
11:50Lunch break
12:50Opportunities in polarization-dependent spectroscopy at APS-U, Daniel Haskel (ANL)
13:25Opportunities & Challenges in Nanoprobe Spectroscopy at SIRIUS, Narcizo Marques Souza Neto (LNLS)
14:00Coffee Break
14:30Recent progress in XAS and XMCD at SPring-8 towards the ultra-low emittance light source, Motohiro Suzuki (JASRI)
15:05Status & Future opportunities of European XFEL, Christian Bressler (European XFEL)
15:40Panel Discussion on Scientific Opportunities in XAFS Research at the 4th GEN LSs
16:20Closing

An Introduction to XAFS Data Analysis with Athena and Artemis (and Larch)

Presented by Matt Newville (U Chicago) and Mauro Rovezzi (CNRS/ESRF)

July 22, 2018, 9:00-16:00
Limited to 50 participants

This one-day session will provide an overview of XAFS data processing and EXAFS analysis using Larch. The session will begin with lectures on analysis methods, but students should have some familiarity with X-ray absorption spectroscopy. The course will emphasize interactive demonstrations of data processing and analysis of EXAFS spectra with practical tips for real analysis strategies for students to learn how to apply these methods to their own research. The session will include a discussion of using the scripting capabilities of Larch and Python. The last two hours of the session will feature presentations and discussions of current and future developments with Larch and Python.

 

The Larch software is available at https://xraypy.github.io/xraylarch/ for Windows, MacOS, and Linux, and can be installed before the course, or during the first hour of the course.

Tentative schedule

09:00Introduction, Overview of XAFS
09:45XAFS Data Processing Steps (pre-edge, background subtraction, Fourier transform)
10:15Coffee
10:30Modelling EXAFS with Feff, Path expansion and Feff-fitting
11:15EXAFS Analysis demonstration
12:00Lunch
13:00EXAFS Analysis demonstration, Hands-on analysis
14:00Larch scripting, plugins, Python programming with Larch, presented by Yohei Uemura (Utrecht University), Konstantin Klementiev (MAX IV), Marius Retegan (ESRF), and Christoph Sahle (ESRF)
15:00Discussion: Python and Larch application developments for XAFS and beyond
16:00End

Hands-on workshop on spectroscopy with FEFF and DFT

Organized by Joshua J. Kas (University of Washington)

July 22, 2018, 9:00-14:00
Limited to 50 participants

This hands on workshop will focus on using FEFF9 to simulate XANES and related spectroscopies. We will begin by instructing participants on the use of FEFF9 with the JFEFF GUI, from installation, to simple examples and tips. Participants will follow along on their own laptop. We will also talk about the combined use of DFT and FEFF to obtain more accurate calculated results and improved physical interpretation of data. Finally, if time permits, we will help participants in simulating XAS of some physical system of interest to them.

 

Requirements:

  1. Laptop: Most reasonably modern laptops will work.
  2. WINDOWS and LINUX users: Current version of Java JRE installed. You can download at https://java.com/en/download/
  3. MAC OSX users: Current version of Java JDK installed. You can download at
    http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
  4. Please bring a system from your own research, for which you would like to simulate a spectrum.

Hands-on workshop on spectroscopy with GNXAS/RMC/GuI

Organized by Andrea Di Cicco (University of Camerino)

July 22, 2018, 9:00-14:00
Limited to 40 participants

Tentative schedule

09:00Theoretical background, methodology for GNXAS
10:30The basic GNXAS package and its advanced usage (GuI, RMC-GNXAS)
12:00Tutorials: examples of GNXAS data-analysis

Attendants are expected to carry their own laptop and can possibly have already downloaded the GNXAS software. They may carry their own data, and possibly try to use GNXAS before the workshop. Software is freely available after registration. The page for downloading is: http://gnxas.unicam.it/pag_gnxas/gnxas_download.html