GISANS Workshop

Europe/Stockholm
Description

Interfaces are integral to major research fields in chemistry, physics, biology, and engineering science. Progress within this field has provided industry the bases for successful products in modern electronics, spintronics and nanoscience products, bio-based materials, drug deliveryand biomedical devices, coatings, lubrication and surface processes including cleaning. The grazing incidence small-angle neutron scattering (GISANS) technique enables the full structure and morphology of surfaces, films, and interfaces to be investigated. The ESS provides a first and world-unique opportunity since it’s very high brilliance will allow GISANS measurements that are at least an order of magnitude faster than at existing sources, and thereby allow the technique to become a crucial and widely utilized tool for surface science.

A concerted Swedish initiative to prepare for the design and construction of a GISANS instrument, SAGA, at ESS has been developed during the last couple of years thanks to the close collaboration and joint efforts of all the main Swedish research institutions with neutron activities, which has benefitted from the close collaboration with international partners.. We now want to welcome you to web symposium on the GISANS technique, featuring two pioneers on the techniques Dr. William A. Hamilton, USA and Professor Peter Müller-Buschbaum, Germany. We will also provide an updated on the SAGA initiative and some recent progress in the application of GISANS.

*Please note that there is specific information related to the BornAgain interactive tutorial. You access it by clicking on the time slot, in the timetable.

    • 13:00 13:05
      Introduction 5m
      Speaker: Max Wolff, Uppsala University Sweden (Uppsala University)
    • 13:05 13:15
      Swedish Research Council and Research Infrastructure at ESS 10m

      Chair: Adrian Rennie, Uppsala University

      Speaker: Niklas Ottosson, Swedish Research Council (Swedish Research Council)
    • 13:15 13:45
      Off Specular Scattering: What It Can Tell You and (some of) What You Need to Know 30m

      Chair: Adrian Rennie, Uppsala University

      Speaker: William Hamilton, previously at ORNL, USA (Formerly at ORNL)
    • 13:45 14:15
      Studying organic solar cells with GISANS 30m

      Chair: Adrian Rennie, Uppsala University

      Speaker: Peter Müller-Buschbaum, Technical Univ. of Munich, Germany (Technical University of Munich, Germany)
    • 14:15 14:45
      Biology in two dimensions – model and less model systems 30m

      Chair: Adrian Rennie, Uppsala University

      Speaker: Christopher J. Garvey, ANSTO Australia (ANSTO)
    • 14:45 15:00
      Break 15m
    • 15:00 15:20
      Curved surfaces for structural biomembrane studies 20m

      Chair: Martin Månsson, KTH Royal Institute of Technology, Stockholm, Sweden

      Speaker: Marité Cardenas, Malmö University Sweden (Malmö University)
    • 15:20 15:40
      Total external reflection & quantum resonators 20m

      Chair: Martin Månsson, KTH Royal Institute of Technology, Stockholm, Sweden

      Speaker: Adrien Perrichon, ISIS Neutron and Muon Source UK (STFC)
    • 15:40 16:00
      GISANS and industrial needs 20m

      Chair: Martin Månsson, KTH Royal Institute of Technology, Stockholm, Sweden

      Speaker: Maja Hellsing, RISE Sweden (RISE)
    • 16:00 16:20
      In situ humidity cycling of thin cellulose films probed by GISANS 20m

      Chair: Martin Månsson, KTH Royal Institute of Technology, Stockholm, Sweden

      Speaker: Stephan Roth, KTH Sweden (KTH)
    • 16:20 16:30
      Concluding remarks 10m
      Speaker: Tommy Nylander (Lund University)
    • 16:30 17:00
      Break and preparation for BornAgain Tutorial 30m
    • 17:00 18:00
      BornAgain interactive tutorial 1h

      Bornagain is an open-source package that simulates and fits neutron and x-ray grazing-incidence small-angle scattering. It implements the distorted-wave Born approximation (DWBA) as the physical model for the scattering process and allows users to simulate multilayer samples with smooth or rough interfaces. Additionally, it includes a vast catalogue of nanoparticle form factors, which can be arranged in different 3d configurations.
      The tutorial will introduce the two main use cases of bornagain: GISA[X|N]S Simulations and GISA[X|N]S data fitting. A series of short video-tutorials will be made available for participants to watch before the interactive session. The video tutorials will cover the simulation of a GISAXS experiment and the fitting of mock data, while the interactive session will focus on fitting data coming from a real experiment (Thanks to Nicolo Paracini & Marité Cardenas). In order to attend the interactive session, participants are asked to download and install bornagain (https://www.bornagainproject.org/download/) and contact Åsa Grunning asa.grunning@fsi.lu.se beforehand to get the links to the video tutorials.
      If problems arise during the installation of bornagain, please contact Juan Carmona directly j.carmona.loaiza@fz-juelich.de

      Speaker: Juan Carmona (FZ-Jülich)