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Microscopy, Energy-Filtering Transmission Electron MeSH Descriptor Data 2022


MeSH Heading
Microscopy, Energy-Filtering Transmission Electron
Tree Number(s)
E01.370.350.515.402.580.500
E05.196.867.838.500
E05.595.402.580.500
Unique ID
D046032
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D046032
Scope Note
An analytical transmission electron microscopy method using an electron microscope fitted with an energy filtering lens. The method is based on the principle that some of the ELECTRONS passing through the specimen will lose energy when they ionize inner shell electrons of the atoms in the specimen. The amount of energy loss is dependent upon the element. Analysis of the energy loss spectrum (ELECTRON ENERGY-LOSS SPECTROSCOPY) reveals the elemental composition of a specimen. It is used analytically and quantitatively to determine which, how much of, and where specific ELEMENTS are in a sample. For example, it is used for elemental mapping of PHOSPHORUS to trace the strands of NUCLEIC ACIDS in nucleoprotein complexes.
Entry Term(s)
EF-TEM
EFTEM
Electron Spectroscopic Imaging
Energy-Filtered TEM
Energy-Filtered Transmission Electron Microscopy
Energy-Filtering Transmission Electron Microscopy
Previous Indexing
Microscopy, Electron (1993-2004)
Public MeSH Note
2005
History Note
2005
Date Established
2005/01/01
Date of Entry
2004/07/07
Revision Date
2005/07/21
Microscopy, Energy-Filtering Transmission Electron Preferred
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