Description
chairman: D. Grolimund
Dr
D Grolimund
(Paul Scherrer Institut, 5232 Villigen-PSI)
16/09/2011, 09:30
Advancing Quantitative Chemical Imaging
Talk
With the increasing recognition that macroscopic material properties and chemical reactivity are frequently triggered by nano- and microscopic structures and processes, the demand for „chemical microscopes“ grew rapidly. Recently, X-ray microprobe techniques advanced into leading methods concerning microscopic chemical imaging. Most advantageous are the achievable spatial resolution, the...
Dr
V Armando Sole
(European Synchrotron Radiation Facility, Grenoble, France)
16/09/2011, 09:45
Advancing Quantitative Chemical Imaging
Talk
The objective of this talk is to provide an introduction to X-ray fluorescence analysis (XRF) presenting the concepts to be retained for proper quantitative analysis. This should serve two purposes; to make sure the difficulties associated to quantitative XRF imaging are kept in mind and to simplify following the subsequent talks on XRF analysis.
Dr
V Armando Sole
(European Synchrotron Radiation Facility, Grenoble, France)
16/09/2011, 10:15
Advancing Quantitative Chemical Imaging
Talk
PyMca is a set of open source software tools for XRF analysis that is becoming a standard for users of most synchrotrons and for many X-ray tube based laboratories. This talk will present the algorithms used, the built-in features and the current developments. Following the “open policy” of the toolkit, not only the strengths, but also the limitations of PyMca in the context of the workshop...
Dr
H A O Wang
(ETH Zürich, Switzerland)
16/09/2011, 11:15
Advancing Quantitative Chemical Imaging
Talk
Trace elements quantification is normally a difficult task in micro X-ray fluorescence analysis (microXRF), also inevitable in high flux synchrotron-based microXRF (SR-microXRF). However the high spatial resolution and high throughput of SR-microXRF are the advantages among chemical analysis techniques. In this work, we combined it with laser ablation inductively coupled plasma mass...
Dr
Marco Cantoni
(School of Basic Sciences, EPF Lausanne, 1015 Lausanne, Switzerland)
16/09/2011, 11:35
Advancing Quantitative Chemical Imaging
Talk
The introduction of silicon drift detectors (SDD) made new applications in electron microscopy possible. Larger detector areas lead to higher collection angles and thus to a higher detection efficiency. Faster electronics improved the overall detection rate. Count rates of 100'000 cts/sec and more have become possible. Improved low energy sensitivity and the increased number of counts (for a...
to be confirmed NN
16/09/2011, 11:55
Advancing Quantitative Chemical Imaging
Talk
