Elemental analysis using Electron Microscopes

Microscopic Characterization
Category General
Difficulty Level Normal
Audience Level General
Description Microscopic characterization methods refer to scientific techniques Which allow determination of both composition and structure of a material. Optical microscopy, scanning probe microscopy and electron microscopy are known as microscopic techniques. This course illustrates how microscopic characterization techniques are used.
Overview
Microscopic methods play an essential role in nanomaterials characterization. Microscopic and X-ray based characterization of nanomaterials techniques are used for the determination of surface morphology and dispersion characteristics of nanomaterials. This course deals with details of these aspects, and will provide a fundamental understanding of morphological tools, such as instrumentation, sample preparation and different kinds of analyses, etc.


Booklet
Description
 This lesson describes the different types of emitted X-ray obtained from the interaction of electron beams with a sample. The braking radiation X-rays are emitted as the electrons slow down (decelerate) in metals while characteristic x-rays are emitted from heavy elements when their electrons make transitions between the lower atomic energy levels.
Mental Challenge
 How X-rays are produced?
Quizzes and Activities
 Activity: Compare EDS and WDS
Further Reading Sources
 1. http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/xrayc.html 

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Section 4

Elemental analysis using Electron Microscopes 21:01

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Section 8