La réflectivité des rayons X ou des neutrons est une technique de caractérisation des surfaces, des couches minces, voire de dépôts multicouches, qui permet d'obtenir des informations sur les épaisseurs, les rugosités et les densités à proximité de la surface étudiée. L'école thématique proposée ici a pour objectif de former les participants aux principes théoriques de la réflectivité, à son utilisation, aux traitements des données ainsi qu'à leur exploitation au travers de cours et de travaux pratiques. Plusieurs cas d'études seront présentés afin de montrer aux participants toutes les potentialités de cette méthode d'analyse de surface.

The school will be co-located at Diamond and Jesus College, Oxford, with participants staying in Oxford.

The SR School provides postgraduate students and post-doctoral researchers, who have little experience of Synchrotron Radiation (SR), a broad-based introduction to many of the different types of experiments conducted using SR. It is largely aimed at physical scientists, but life scientists are welcome to apply. The school gives the attendees the opportunity to obtain hands-on practical experience of performing an experiment on several of the Diamond beamlines. At least 14 Diamond beamlines will be particpating in the school (see below for details).

 Topics covered in the course lectures

• X-ray Scattering
• Symmetry and Crystallography
• The Diamond Synchrotron
• X-ray optics and detectors
• An introduction to the data analysis program DAWN

And the synchrotron use of:

• Infrared Microspectroscopy
• Powder Diffraction
• Resonant and Magnetic Scattering
• Small-Angle Scattering
• Surface Diffraction
• X-ray Absorption Spectroscopy
• X-ray Imaging
• X-ray Photoelectron Spectrocopy

Organized By Physics Group, Bhabha Atomic Research Centre, Mumbai 400 085, India

 Topics

• Science with Synchrotron Radiation
• Control & Instrumentation for Synchrotron beamlines
• Multilayers for Lasers, Neutrons and Synchrotron beam
• Spectroscopy with Lasers
• Photonics and Devices
• Optical Instruments for Nuclear & non-Nuclear applications
• Optics for Astrophysical sciences
• Optical Coherence Tomography & Holography

Hands-on-Training in EXAFS Beam Line

There will be a special programme on “Hands-on training and data analysis” for beginners and young users of the EXAFS beamlines under the umbrella of “XAFS commission of International Union of Crystallography (IUCR)”.

The Massive Open Online Course (MOOC) from the EPFL (Ecole Polytechnique Federale de Lausanne) covers introductory aspects of synchrotron and XFEL radiation. A link to the course can be found at

https://www.edx.org/course/synchrotrons-and-x-ray-free-electron-laser.

A short 'teaser' video is also viewable at https://www.youtube.com/watch?v=CyIGssgri50, which gives an insight into the course contents.

The course is aimed at a broad scientific audience from historical-artefact restorators and paleontologists, through biologists, biochemists and chemical engineers, to materials scientists and physicists. It includes the following themes:

• Interaction of X-rays with matter;
• The production and physics of synchrotron and XFEL radiation;
• X-ray optics, beamlines, and instrumentation;
• X-ray diffraction and scattering;
• UV and X-ray spectroscopies;
• X-ray imaging (mainly tomography and lensless imaging/ptychography);
• Extra week on phasing techniques in macromolecular crystallography.

The course begins next Monday 5th March 2018 and lasts for nine weeks - each week, two to three new videos are released (youTube videos embedded in the edX player, which can be downloaded and viewed at leisure), each approximately 20 minutes long, plus optional problems (and optional final exam at the end of the course). Enrollment on the course (see above link) is free; a Verified Certificate can be purchased at the end for those who so wish and have achieved the pass grade.

This is an excellent opportunity, especially for younger staff and students, to learn more about the fascinating and interdisciplinary world of synchrotron science and all its myriad possibilities in an engaging and exciting manner!

XTOP2018 is an historical conference, the row starting in 1992 in Marseille, the last one was held in Brno (Czech Republic).

The main scope of the conference was set already in 1992 to X-ray topography and high resolution diffraction, however during the time the conference has covered also other related topics like X-ray tomography, phase sensitive scattering, scanning techniques etc.

The main topics will be:

• Production and properties of synchrotron radiation;
• Free electron lasers;
• Basics of the interaction between matter and radiation;
• X-ray absorption spectroscopy (EXAFS and XANES);
• X-ray diffraction (single crystal and powder diffraction, anomalous scattering);
• Small angle X-ray scattering;
• X-ray microscopy;
• Photoemission (from valence and from core levels; angular, time and spin resolved);
• IR spectroscopy and microscopy;
• Imaging;
• Resonant spectroscopy and diffraction;
• Inelastic X-ray scattering.
• Applications in the fields of materials, nanoscience, magnetism, catalysis, earth science, environmental science, cultural heritage, biology and medicine will be presented.

Thèmes abordés :

• croissance cristalline et caractérisation des défauts
• mise en forme des matériaux
• spectroscopie des ions de transition
• tests laser et qualification des matériaux
• optique non linéaire et thermo-optique
• propriétés électro-optiques
• endommagement laser des cristaux
• micro- et nanostructuration
• intégration dans les dispositifs

Frontier Science with Forefront Synchrotrons and XFEL Sources

Frontier Science with Forefront Synchrotrons and XFEL Sources

XOPT covers the recent progress of X-ray science and technology and developments with topics including the following fields:

X-ray optical components

High-resolution monochromators
High-resolution spectrometers/analyzers
Beamline monochromators/mirrors
Focusing optics (reflective, refractive, diffractive)
Phase retarders and polarization optics
Diagnostics tools
New optics for DLSR

Methods

X-ray imaging/microscopy
X-ray inelastic scattering
Time resolved analysis
X-ray correlation spectroscopy
Nonlinear X-ray optics
New Methods/applications for DLSR

Others

X-ray sources
X-ray detectors

Imaging techniques have seen an intense development using neutron and synchrotron radiation over the past 20 years, with the development of brighter sources and efficient detectors. Newest developments in imaging techniques will be presented and discussed. Beyond the experimental aspects, the data analysis workflow is essential for an efficient and objective interpretation of experimental data.

This school will, thus, be an “image language course” in which experts and beginners are discussing the creation and use of images. With the help of “best practice” and “bad practice” examples fundamental aspects of image production and image operation shall be highlighted and discussed, from the definition of experimental parameters, the reconstruction algorithms, to data visualization.

The course will cover a wide range of experimental imaging techniques: two and three-dimensional imaging, time-resolved experiments, absorption, phase-contrast, scanning microscopy, coherent diffraction imaging and ptychography, etc…

The school will begin with two days of lectures covering major techniques and theoretical aspects of image processing, one poster session, one day of practicals on ESRF beamlines, one day of tutorials focusing on data analysis, and one day of lectures on more specialized topics.

NOTE: the school is primarily intended for young researchers (PhD students and postdocs), but more experienced researchers interested in the topic can also apply.