Difference between revisions of "Tutorials"

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* '''[http://gisaxs.com/files/Strzalka.pdf GIXS: hands-on data analysis]''', Joe Strzalka ([[APS|Advanced Photon Source]], Argonne National Laboratory): An introduction to practical aspects of interpreting and analyzing grazing-incidence data, including the use of [[GIXSGUI]] software.
 
* '''[http://gisaxs.com/files/Strzalka.pdf GIXS: hands-on data analysis]''', Joe Strzalka ([[APS|Advanced Photon Source]], Argonne National Laboratory): An introduction to practical aspects of interpreting and analyzing grazing-incidence data, including the use of [[GIXSGUI]] software.
 
* '''[http://gisaxs.com/files/YagerACA_05.pdf GISAXS/GIWAXS Data Analysis: Thinking in Reciprocal-Space]''', [[Kevin Yager]] ([[National Synchrotron Light Source]] and Center for Functional Nanomaterials, [[BNL|Brookhaven National Laboratory]]): An introduction to the interpretation and basic analysis of GISAXS data, in particular in relation to the concept of how the experiment probes a slice through the 3D [[reciprocal-space]].
 
* '''[http://gisaxs.com/files/YagerACA_05.pdf GISAXS/GIWAXS Data Analysis: Thinking in Reciprocal-Space]''', [[Kevin Yager]] ([[National Synchrotron Light Source]] and Center for Functional Nanomaterials, [[BNL|Brookhaven National Laboratory]]): An introduction to the interpretation and basic analysis of GISAXS data, in particular in relation to the concept of how the experiment probes a slice through the 3D [[reciprocal-space]].
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* '''[http://gisaxs.com/files/Yager-2016_xray_soft_matter.pdf Synchrotron Scattering for Study of Soft Systems]''', [[Kevin Yager]] ([[National Synchrotron Light Source]] and Center for Functional Nanomaterials, [[BNL|Brookhaven National Laboratory]]): A brief tutorial/introduction to how [[x-ray]] [[scattering]] functions. Selected examples of using [[SAXS]] and [[GISAXS]] to study soft and hybrid systems is then presented. Finally, a few emerging methods are presented, to demonstrate how to go beyond conventional scattering approaches.
 
* '''[http://gisaxs.com/files/Van%20Herck_DataAnalysisWithBA.pdf GISAS Data Analysis with BornAgain]''', Walter Van Herck (Jülich Centre for Neutron Science JCNS, Germany): Description of how to use the [[BornAgain]] software for quantitatively modeling and fitting GISAXS data.
 
* '''[http://gisaxs.com/files/Van%20Herck_DataAnalysisWithBA.pdf GISAS Data Analysis with BornAgain]''', Walter Van Herck (Jülich Centre for Neutron Science JCNS, Germany): Description of how to use the [[BornAgain]] software for quantitatively modeling and fitting GISAXS data.
 
* '''[http://gisaxs.com/files/2014_Hexemer.pdf High performance GISAXS]''', Alexander Hexemer ([[ALS|Advanced Light Source]], Lawrence Berkeley National Laboratory): Description of recent developments in the high-throughput and high-performance modeling of GISAXS data, in particular describing the [[HipGISAXS]] software.
 
* '''[http://gisaxs.com/files/2014_Hexemer.pdf High performance GISAXS]''', Alexander Hexemer ([[ALS|Advanced Light Source]], Lawrence Berkeley National Laboratory): Description of recent developments in the high-throughput and high-performance modeling of GISAXS data, in particular describing the [[HipGISAXS]] software.
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==Educational==
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* [http://journals.iucr.org/j/issues/2018/06/00/gj5217/index.html EwaldSphere: an interactive approach to teaching the Ewald sphere construction] ''J. Appl. Cryst.'' '''2018''' [https://doi.org/10.1107/S1600576718012876 doi: 10.1107/S1600576718012876]
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** [http://academic.sun.ac.za/barbour/Software.html Web-site with software and presentation slides for these concepts.]
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==Courses==
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===EPFL MOOC===
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A Massive Open Online Course (MOOC) from the EPFL (Ecole Polytechnique Federale de Lausanne), covering introductory aspects of synchrotron and XFEL radiation is being offered:
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* [https://www.edx.org/course/synchrotrons-and-x-ray-free-electron-lasers https://www.edx.org/course/synchrotrons-and-x-ray-free-electron-lasers]
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The course begins '''5th March 2018''' and lasts for nine weeks. The course is aimed at a broad audience and includes the following themes:
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# Interaction of x-rays with matter;
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# The production and physics of synchrotron and XFEL radiation;
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# X-ray optics, beamlines, and instrumentation;
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# X-ray diffraction and scattering;
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# UV and x-ray spectroscopies;
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# X -ray imaging (mainly tomography and lensless imaging/ptychography);
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# Extra week on phasing techniques in macromolecular crystallography.
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==Frequently Asked Questions==
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* [[GISAXS sample requirements|What are the sample/substrate requirements for GISAXS?]]
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* [[GISAXS measurement time|How long does it take to measure a sample?]]
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** [[Radiation damage|Do I need to worry about beam damage?]]
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* [[Tutorial:What to do with data|What do I do with my data?]]
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** [[Tutorial:Qualitative inspection|Qualitative inspection]]
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*** [[Scattering features]]
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** [[Tutorial:Linecuts|Linecuts]]
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** [[Background|Background subtraction]]
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** [[Tutorial:Indexing|Peak Indexing]]
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** [[Tutorial:Modeling|Modeling]]
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** [[Tutorial:Fitting|Data Fitting]]
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* [[Software|What software is available for analysis?]]
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* [[Sample orientation|Why does sample orientation matter?]]
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* [[GI missing wedge|What's that missing wedge (near qz axis) in my processed data?]]
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* [[Scattering vs. microscopy|GISAXS is complicated. Why not just do microscopy?]]
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==Data Analysis==
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* [[Scattering models]]
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* [[Example:Polymer clustering|Polymer clustering or gel mesh size from SANS]]
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* [[Example:P3HT orientation analysis|Orientation analysis (using P3HT as an example)]]
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* [[Example:Particle spacing from peak position|Particle spacing from peak position]]
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===Scaling Analysis===
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* [[Porod plot]] (<math>\scriptstyle I \sim q^{-4}</math>)
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* [[Fresnel plot]] (<math>\scriptstyle R \sim q^{-4}</math>)
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* [[Kratky plot]] (<math>\scriptstyle I \sim q^{-2}</math>)
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* [[Debye scaling]] (<math>\scriptstyle I \sim q^{-2}</math>)
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* [[Rod-like scaling]] (<math>\scriptstyle I \sim q^{-1}</math>)
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* [[Guinier plot]] (<math>\scriptstyle \ln(I) \sim 1 - (R_g^2/3)q^{2} </math>)
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* [[Zimm plot]]
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==Experimental Help==
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* [[GISAXS alignment]]
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* [[Grating alignment]]
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==Miscellaneous Questions==
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* [[Definitional boundaries|What's the difference between scattering and diffraction? SAXS and WAXS?]]
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* [[Reflectivity oscillations below critical angle|Why are there oscillations below the critical angle in my reflectivity curve?]]
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==See Also==
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* [[Useful Literature]]
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* [[Useful Links]]
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* [[Technical articles]]

Latest revision as of 08:44, 29 January 2019

This page provides tutorials (basic and advanced) to help GISAXS users with experiment design, data analysis, and data modeling:

Slides from Presentations

Educational

Courses

EPFL MOOC

A Massive Open Online Course (MOOC) from the EPFL (Ecole Polytechnique Federale de Lausanne), covering introductory aspects of synchrotron and XFEL radiation is being offered:

The course begins 5th March 2018 and lasts for nine weeks. The course is aimed at a broad audience and includes the following themes:

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

Frequently Asked Questions

Data Analysis

Scaling Analysis

  • Porod plot ()
  • Fresnel plot ()
  • Kratky plot ()
  • Debye scaling ()
  • Rod-like scaling ()
  • Guinier plot ()
  • Zimm plot

Experimental Help

Miscellaneous Questions

See Also

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