John Goodge

Back-scattered Electron Detector (BSE) part of Nanotechnology in STEM:Methods
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 ...

Element Mapping part of Nanotechnology in STEM:Methods
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 ...

Wavelength-Dispersive X-Ray Spectroscopy (WDS) part of Nanotechnology in STEM:Methods
Darrell Henry, Louisiana State University John Goodge, University of Minnesota-Duluth When an electron beam of sufficient energy interacts with a sample target it generates X-rays, as well as derivative electrons ...

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 ...

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 ...