Scanning Electron Microscopy - Cathodoluminescence (SEM-CL) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University What is SEM-CL? A cathodoluminescence detector attached to a Scanning Electron Microscope (SEM), Field Emission Microscope (FEM) or an Electron Microprobe (EPMA) is ...

Back-scattered Electron Detector (BSE) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
John Goodge, University of Minnesota at Duluth. Interaction of an accelerated electron beam with a sample target produces a variety of elastic and inelastic collisions between electrons and atoms within the ...

Energy-Dispersive X-Ray Spectroscopy (EDS) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
John Goodge, University of Minnesota-Duluth Interaction of an electron beam with a sample target produces a variety of emissions, including x-rays. An energy-dispersive (EDS) detector is used to separate the ...

Geochemical Instrumentation and Analysis part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Students on the XRD in the Image and Chemical Analysis Laboratory at Montana State University. Details What is the Purpose of this Site? The purpose of this project is to supply an on-line tutorial of the ...

Element Mapping part of Integrating Research and Education:Geochemical Instrumentation and Analysis
John Goodge, University of Minnesota-Duluth Element map of Mg zoning in garnet. Details An element map is an image showing the spatial distribution of elements in a sample. Because it is acquired from a polished ...

Phase problem part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Christine M. Clark, Eastern Michigan University When X-rays are "shot" at a sample, the resultant waves (with characteristic wavelenghth, amplitude, and phase) are due to the interaction between the ...

You've Got Geochemical Data—Now What? part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Karl Wirth, Macalester College Organizing The Data Before you begin evaluating and analyzing your results, you will want to make sure that you have all your data organized and in final form. This process usually ...

Electron Backscatter Diffraction (EBSD) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Susan Swapp, University of Wyoming What is EBSD? Accelerated electrons in the primary beam of a scanning electron microscope (SEM) can be diffracted by atomic layers in crystalline materials. These diffracted ...

Generation of Characteristic X-Rays part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Darrell Henry, Louisiana State University Characteristic X-rays are generated when an energetic beam of electrons interacts with the inner shell electrons by inelastic scattering with enough energy to excite inner ...

Secondary Ion Mass Spectrometer (SIMS) part of Integrating Research and Education:Geochemical Instrumentation and Analysis:Techniques
As a class, SIMS instruments (aka ion microprobes) use an internally generated beam of either positive (e.g., Cs) or negative (e.g., O) ions (primary beam) focused on a sample surface to generate ions that are then ...