Microanalysis Webinars

Microanalysis Webinar Series

EDS turbocharged! Collecting live-time phase data

Getting good data from elemental maps with low intensity x-rays or overlapping peaks requires additional computation routines for peak deconvolution and background subtraction. With matrix corrections, the result is a crisp, unambiguous and quantitative map. We show how both Quantitative X-ray Element Maps and X-ray Phase Maps run in real time rapidly speeds your mapping analysis. 
Run time: 45 mins
Recording date: 3/24/2015 

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Choosing the right EDS detector size

The last few years have seen an explosion in EDS detector sizes. We compare 100mm²/60mm² vs 30mm²/10mm². There are some fundamental questions regarding detector sizes: When is a small area better than large? When is large really better than small? Do I need both?
Run time: 15 mins
Recording date: 11/26/2014 

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Rethinking EDS detection

We review the latest advances in EDS detector technology relative to historical performance requirements; it sets the stage for a broad discussion of value-based EDS detector selection. We also introduce the Thermo Scientific™ UltraDry™ Compact EDS detector.
Run time: 30 mins
Recording date: 1/21/2014 

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Image filters to the rescue

X-ray mapping is a powerful tool for analyzing the distribution of elements or components in a sample. “Noisy” images frequently impede conclusive answers due to low concentrations of an element or regions of sparse, but critical, data. Image filters can greatly improve confidence in your data. 
Run time: 15 mins
Recording date: 6/12/2014 

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Non-linear smoothing filters

Part 2 in our series on data visualization. High-quality data presentation implies high-quality data acquisition/analysis or simple style over substance. We continue our discussion of data visualization techniques for EDS: where they work and where they lead us astray.
Run time: 30 mins
Recording date: 9/9/2014 

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Particle analysis with feature sizing

Feature Sizing with Chemical Typing software facilitates the identification and characterization of small particles or inclusions sparsely located throughout a matrix. This presentation shows how to measure, count and identify particles, inclusions, phases and regions of interest within the sample, and identify and save particle classes
Run time: 30 mins
Recording date: 4/9/2013

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Adding value to EPMA

The Electron Probe Microanalyzer (EPMA) sets the standard for spectroscopy excellence in electron microscopy. The Thermo Scientific™ NORAN System 7 is designed for rapid results with EDS and quickly surveys large sections of the sample across the entire energy spectrum with acquisition times 100 times faster than the WDS. It operates effectively at low accelerating voltages and low beam currents (i.e. 5 kV, 1 nA) where the WDS spectrometers are poorly positioned.

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Unleashing the power of COMPASS

This presentation is a fast-paced demonstration of our Thermo Scientific™ COMPASS software. COMPASS is a fully automated statistical analysis tool that eliminates any chance of misinterpretation of the data, and the possibility of your publishing incorrect results. See how you can quickly create phase maps that pin-point the critical features in your sample. Learn how any analyst will get exact same results. We will run through a number of show-and-tell examples.

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EDS/WDS mapping: a review of X-ray techniques

Spectral imaging collects a full energy spectrum at each pixel in your image. Faster acquisition times and increased automation have made it one of the more commonly used microanalytical methods in SEM. We use a lunar meteorite to review the many mapping methods that spectral imaging data provides. Our review includes elemental mapping, semi-quantitative elemental mapping, quantitative elemental mapping, and phase mapping with COMPASS software. We explore benefits of each, and offer tips on choosing the right method for your application.
Run time: 25 mins
Recording date: 11/17/2014 

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Managing X-ray line interference challenges in Quant EDS and WDS

One of the greatest challenges in SEM-based microanalysis is managing interfering X-ray lines. We review the quantitative analysis of a Ti-V-Al-Fe sample consisting of two phases with only small differences in V and Fe content. We cover a number of possible techniques to resolve X-ray lines line separated by only 17 eV. Neither EDS alone, nor WDS, could solve this problem.

Run time: 30 mins
Recording date: 4/8/2014

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WDS to the rescue

WDS is the perfect complement to EDS. The unmatched energy resolution and low backgrounds of WDS make it the ideal technique for the definitive identification of the elements present in a sample and the quantification of elements down to a concentration of ~0.01 wt%. We cover several confounding X-ray interferences in EDS and show how WDS brings clarity in the investigation of spectra and mapping.
Run time: 30 mins
Recording date: 2/17/2015

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Phase mapping of apitite and monazite

Mapping phases by simply relying on X-ray maps, or using a spectral matching method, require subjective inputs into the analysis. We explore mapping apatite and zoned monazite grains. Using principal component analysis (PCA) software, we produce rich spectrum-based phase maps acquired with no input regarding the composition of sample—the PCA software does all the work.
Run time: 40 mins
Recording date: 5/13/2014

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WDS spectrometer technologies

Recent developments have made wavelength dispersive X-ray spectroscopy (WDS) much more accessible to SEM/EDS work. In this presentation in X-ray microanalysis, we present the modern way to do WDS. Thanks to improved X-ray optics and better mechanical operation, what was once painstaking slow and difficult to use has become as easy to use as EDS.
Run time: 35 mins
Recording date: 6/9/2015

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WDS quantification of metamorphic rock in the SEM

This presentation shows how to make quick work out of quantitative analysis of materials such as a metamorphic rock. We walk through the steps to collect WDS quantitative data from minerals in a contact metamorphosed calc-silicate rock. Thanks to routines built into the WDS spectrometer and simultaneous EDS and WDS acquisitions, plus stage automation WDS quant analysis nearly as quick and easy as EDS. 

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Spectroscopy, Elemental & Isotope Analysis Resource Library

Access a targeted collection of application notes, case studies, videos, webinars and white papers covering a range of applications for Fourier transform infrared (FTIR) spectroscopy, near infrared spectroscopy, Raman spectroscopy, nuclear magnetic resonance, ultraviolet-visible (UV-Vis) spectrophotometry, X-ray fluorescence, and more.

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