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Annual General Meeting of ORSO

Jun 14 – 18, 2021
Zoom
Europe/Stockholm timezone

Session

Plenary

Jun 14, 2021, 9:00 AM
Zoom

Zoom

Conveners

Plenary: Session 1

  • Thomas Arnold (European Spallation Source ERIC)

Plenary: Session 2

  • Thomas Arnold (European Spallation Source ERIC)

Plenary: Session 3

  • There are no conveners in this block

Description

Summary of progress since the last meeting
3-4 scientific talks (speakers to be confirmed)

Presentation materials

There are no materials yet.

  1. 2. Introduction
    Thomas Arnold (European Spallation Source ERIC)
    6/14/21, 9:00 AM
  2. 3. Reproducible science in the neutron reflection context
    Dr Stuart Prescott (UNSW Chemical Engineering)
    6/14/21, 9:15 AM

    Reproducibility is a broad term that covers many aspects of the scientific endeavour. In the context of a reflectometry experiment, ‘reproducibility’ can be understood to cover the details of sample preparation, data collection, data reduction, and data analysis. Attention to reproducibility is enabling: it allows the experiment to be repeated, the data handling pipeline to be checked, the...

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  3. 4. Spatially resolved neutron reflectometry by computed tomography
    Hiroyuki Aoki
    6/14/21, 9:45 AM

    Neutron reflectometry (NR) has been employed to analyze the nanometric structure of the surface and interfaces of various materials. In a conventional NR experiment, the illuminated area is on the order of 1 - 10 cm^2; therefore, it has been difficult to use the NR for the sample with in-plane inhomogeneity. This work realized a spatially resolved NR technique by the combination of a...

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  4. 5. Resonant x-ray reflectivity: probing the chemical and magnetic profiles
    Tom Hase
    6/14/21, 10:30 AM
  5. 6. Nina-Juliane Steinke
    6/14/21, 11:00 AM
  6. 7. The Data Formats Working Group
    Jochen Stahn (Paul Scherrer Institut)
    6/14/21, 11:30 AM
  7. 8. The Education and Outreach Working Group
    Bridget Murphy
    6/14/21, 11:45 AM
  8. 9. Introduction
    Thomas Arnold (European Spallation Source ERIC)
    6/14/21, 7:00 PM
  9. 10. Reinventing time-of-flight reflectometry—return of a proven approach
    Tim Charlton
    6/14/21, 7:15 PM

    T. Charlton, H. Ambaye and A. Huon (ORNL)
    M.R. Fitzsimmons (ORNL/University of Tennessee, Knoxville)

    In this self-hosted Zoom-chat, I will discuss data acquisition and analysis techniques for neutron reflectometry at continuous wave (CW) sources applied to a pulsed-neutron source. I show data collected using the BL4A reflectometer at the Spallation Neutron Source (ORNL) using the so-called...

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  10. 11. Free Thiols Regulatation of the Interactions and Self-Assembly of Thiol-Passivated Metal Nanoparticles investigated with X-ray scattering and MD simulations.
    Binhua Lin
    6/14/21, 7:45 PM

    Pan Suna,1, Linsey M. Nowack b,1, Wei Bu a, Mrinal K. Bera a, Sean Griesemer b, Morgan Reik b, Joshua Portner b, Stuart A. Riceb,d, Mark L. Schlossman c and Binhua Lin a,b*
    a NSF’s ChemMatCARS, University of Chicago, Chicago, IL 60637, USA
    b James Franck Institute, University of Chicago, Chicago, IL 60637, USA
    c Department of Physics, University of Illinois at Chicago, Chicago, IL 60607,...

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  11. 12. Why NeXus?
    Ray Osborn
    6/14/21, 8:30 PM
  12. 13. 35 years of x-ray reflectivity at NSLS & NSLS II: science hiding in small features and the new kid (instrument) on the block
    Ben Ocko
    6/14/21, 9:00 PM
  13. 14. The Data Analysis Working Group
    Brian Maranville
    6/14/21, 9:30 PM
  14. 15. The Reproducibility Working Group
    Andrew McCluskey (European Spallation Source ERIC)
    6/14/21, 9:45 PM
  15. 16. Summary of the working group sessions
    6/18/21, 7:00 PM
  16. 17. New Methods in Reflectivity Analysis: Neural Networks and the Fisher Information
    Joshanial Cooper, James Durant
    6/18/21, 7:30 PM
  17. 18. Artificial Intelligence Analysis of Reflectivity Data
    Stefan Kowarik
    6/18/21, 8:00 PM

    Stefan Kowarik1, Alessandro Greco2, David Marecek1, Erich Hüthmair1, Vladimir Starostin2, Alexander Hinderhofer2, Alexander Gerlach2, Maximilian Skoda3, and Frank Schreiber2
    — 1Department of Physical Chemistry, University of Graz, Austria
    — 2Institute of Applied Physics, University of Tübingen, Germany
    — 3Rutherford Appleton Lab, ISIS Neutron and Muon Source, UK
    We review the applicability...

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  18. 19. Towards reflectivity profile inversion through artificial neural networks
    Juan Carmona Loaiza
    6/18/21, 8:30 PM

    The goal of specular neutron and x-ray reflectometry is to infer a material's scattering length density (SLD) profile from its experimental reflectivity curves. In this talk I will quickly describe the ill-posed non-invertible problem and an approach to some solutions via the use of artificial neural networks (ANNs). In particular, I will describe a set of tailored numerical experiments with...

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