Difference between revisions of "Scanning electron microscope"

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[[File:SEM.jpg|thumb|JEOL scanning electron microscope system]]
 
 
== Description ==
 
== Description ==
  
A microscope that uses a scanning beam of electrons to magnify images as much as 50,000 times.  First sold commercially in 1965, the scanning electron microscope (SEM) has a finely focused electron beam that interacts with the sample's surface to provide images and analysis.  Electrons that are ejected from the sample, called secondary electrons, are collected and translated into a picture of the sample's surface.  X-rays emitted from the sample characterize the elements that are present.
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A microscope that uses a scanning beam of electrons to magnify images as much as 50,000 times.  First sold commercially in 1965, the scanning electron microscope (SEM) has a finely focused electron beam that interacts with the sample's surface to provide images and analysis.  Electrons that are ejected from the sample, called secondary electrons, are collected and translated into a picture of the sample's surface.  X-rays emitted from the sample permit by energy dispersive analysis to characterize and map the concentration of elements that are present.
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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SEM; microscope électronique à balayage (Fr.); MEB (Fr;); Rasterelektronenmicroscop (Deut.); microscopia electronica de varrimento (Port.)
 
SEM; microscope électronique à balayage (Fr.); MEB (Fr;); Rasterelektronenmicroscop (Deut.); microscopia electronica de varrimento (Port.)
  
== Authority ==
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==Resources and Citations==
 
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* Wikipedia: [https://en.wikipedia.org/wiki/Scanning_electron_microscope Scanning electron microscope]
* M. Schreiner, M. Melcher, K. Uhlir, Scanning electron microscopy and energy dispersive analysis: applications in the field of cultural heritage, Analytical and Bioanalytical Chemistry (February 2007) Vol 387, 3, pp 737-747  
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* M. Schreiner, M. Melcher, K. Uhlir, Scanning electron microscopy and energy dispersive analysis: applications in the field of cultural heritage, Analytical and Bioanalytical Chemistry (February 2007) Vol 387, 3, pp 737-747
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* National Gallery of Art, Scientific Research: [https://www.nga.gov/conservation/glossary.html Glossary of Conservation Terminology]
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 11:35, 20 June 2023

Description

A microscope that uses a scanning beam of electrons to magnify images as much as 50,000 times. First sold commercially in 1965, the scanning electron microscope (SEM) has a finely focused electron beam that interacts with the sample's surface to provide images and analysis. Electrons that are ejected from the sample, called secondary electrons, are collected and translated into a picture of the sample's surface. X-rays emitted from the sample permit by energy dispersive analysis to characterize and map the concentration of elements that are present.

Synonyms and Related Terms

SEM; microscope électronique à balayage (Fr.); MEB (Fr;); Rasterelektronenmicroscop (Deut.); microscopia electronica de varrimento (Port.)

Resources and Citations

  • Wikipedia: Scanning electron microscope
  • M. Schreiner, M. Melcher, K. Uhlir, Scanning electron microscopy and energy dispersive analysis: applications in the field of cultural heritage, Analytical and Bioanalytical Chemistry (February 2007) Vol 387, 3, pp 737-747
  • National Gallery of Art, Scientific Research: Glossary of Conservation Terminology