MAS

 

Open-Source Data Analysis Workshop

 

MAS is pleased to sponsor a topical workshop on Open-source software tools for microanalysis, taking place as part of IUMAS-8: The 8th Meeting of the International Union of Microbeam Analysis Societies in Banff, Alberta. This workshop will be highly interactive and aims to provide attendees with the skills necessary to feel comfortable running their own analyses using the various software packages and methods presented.

 

Keynote speakers will be:

• Colin Ophus (National Center for Electron Microscopy) – Py4DSTEM for Processing Four-dimensional STEM data

• Francisco de la Peña (Université de Lille) – HyperSpy for Interactive Analysis of Multidimensional Datasets

 

Other invited speakers include:

• Carter Francis (University of Wisconsin-Madison) – pyxem for Processing Multidimensional Diffraction Data

• Jordan Hachtel (Oak Ridge National Laboratory)  – Topic TBD

• Marcus Hanwell (Brookhaven National Laboratory)  – Topic TBD

• Jonas Lähnemann (Paul Drude Institute for Solid State Electronics)  – LumiSpy for Processing Luminescence Spectroscopy Data

• Nicholas Ritchie (National Institute of Standards and Technology)  – NeXL for Quantitative EDS Analysis

• Håkon Wiik Ånes (Norwegian University of Science and Technology) – kikuchipy for Processing EBSD Data

• (More to come… this page will be updated as speakers are confirmed)

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IUMAS

 

Quantitative Microanalysis and Microfluorescence Imaging

 

This full day workshop consists of two components. The first part of the workshop aims to cover the theory and practical aspects of microanalysis of complex materials where quantification is challenging due to the sensitivity of the samples to the electron beam interaction.  The second part of the workshop covers the application of state-of-the-art microfluorescence imaging carried out within scanning electron microscopes, the comparison with EDS imaging in SEM, and the use of synchrotron light sources for macro-micro-nano scale imaging of a broad range of materials.

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Part 1) Advances in Analysis of Minerals

Analysis of hydrated minerals can often be problematic due to the migration of ionic species under the beam and the removal of water in hydrated minerals.  Through the application of cryo-microanalysis and low beam current analysis these problems can be migrated.  This talk will cover sample preparation requirements, including coatings for cryo-microanalysis.  Beam power determinations to limit migration of ionic species and stabilisation of both hydroxyls and bound water.

While collecting x-rays without damage or migration is critical the correction of all elements within a mineral necessitates that traditional matrix correction techniques need to be extended and best practice using matrix matching techniques together with new strategies for matrix correction enabling H and O to both be better corrected in hydrated mineral systems will be presented. 

Developments in spectroscopic techniques which will be covered include:

• SXES spectroscopy for the identification of structure, grain orientation and the application of carbon structures associated with meteorites

• Cathodoluminescence and its ability to be used to spectrally identify minerals together with its ability to be used as a fast-screening tool.  Application of cryo-CL to minimise beam damage and collect minimal damage CL spectra for the identification of mineral systems with below micron resolution.

 

Speakers include

• Colin MacRae – microanalyst and spectroscopist at CSIRO Melbourne

• Nick Wilson - microanalyst, spectroscopist and QM modeller at CSIRO Melbourne

 

Part 2) Microfluorescence Imaging

Microfluorescence imaging is powerful technique for the investigation of the distribution of low concentration elements in materials. Such technique can be carried out with laboratory sources operated within scanning electron microscopes or with synchrotron-based light sources. In this part of the workshop, the fundamentals and technology of microfluorescence imaging will be discussed with examples comparing EDS mapping with microfluorescence imaging within a scanning electron microscope. A second component of the workshop will focus on the application of synchrotron-based fluorescence imaging. This will include the fundamentals and technology of synchrotron radiation and the implementation of microfluorescence mapping, with applications in materials and trace element mapping in biological structures.

 

Speakers include

• Thomas Lam, Smithsonian Institution, Museum Conservation Institute, MD, USA

• Andrea Somogyi, Nanoscopium beamline, Synchrotron Soleil, France

• Gianluigi Botton and Gosia Korbas, Canadian Light Source