John Goodge

Energy-Dispersive X-Ray Spectroscopy (EDS) part of Nanotechnology in STEM:Methods
A content page within an educational geoscience module explains Energy-Dispersive X-Ray Spectroscopy (EDS), detailing its principles, integration with SEM/EPMA, strengths in rapid elemental analysis and mapping, limitations including peak overlaps and inability to detect light elements, and illustrative spectral results, serving as a resource for nanotechnology and materials characterization instruction.

Electron probe micro-analyzer (EPMA) part of Nanotechnology in STEM:Methods
An electron probe micro-analyzer is a microbeam instrument used primarily for the in situ non-destructive chemical analysis of minute solid samples. EPMA is also informally called an electron microprobe, or just ...

Back-scattered Electron Detector (BSE) part of Nanotechnology in STEM:Methods
Educational webpage detailing the principles, operation, strengths, and limitations of Back-Scattered Electron Detectors (BSE) in electron microscopy, including compositional imaging, phase differentiation in geological samples, and integration with SEM/EPMA, accompanied by grayscale and colorized BSE image examples and references.

Wavelength-Dispersive X-Ray Spectroscopy (WDS) part of Nanotechnology in STEM:Methods
This educational webpage details Wavelength-Dispersive X-Ray Spectroscopy (WDS), an analytical method used in electron probe microanalysis (EPMA) and scanning electron microscopy (SEM) for high-resolution, quantitative elemental analysis and mapping of solid materials at micrometer-scale spatial resolution, highlighting its principles, strengths, limitations, and comparison with energy-dispersive spectroscopy (EDS).

Back-scattered Electron Detector (BSE) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Educational webpage detailing the principles, operation, strengths, and limitations of Back-scattered Electron Detectors (BSE) in SEM and EPMA instruments, emphasizing compositional imaging in geological samples.

Energy-Dispersive X-Ray Spectroscopy (EDS) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Educational webpage detailing Energy-Dispersive X-Ray Spectroscopy (EDS), covering principles, instrumentation, strengths, limitations, spectral interpretation, and applications in geochemical analysis, featuring examples, references, and teaching resources.

Element Mapping part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Educational content page detailing element mapping in geochemical analysis, covering EDS/WDS techniques, spatial distribution of elements, mineral zonation visualization, strengths and limitations of mapping methods, and comparative analysis with back-scattered electron imaging.