Difference between revisions of "Nier-Johnson geometry"

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An arrangement for a [[Double-focusing Mass Spectrometer|double-focusing mass spectrometer]] in which a deflection of &pi;/2 radians in a radial electrostatic field analyser is followed by a [[magnetic deflection]] of &pi;/3 radians. The [[electrostatic analyser]] uses a symmetrical object-image arrangement and the magnetic analyser is used asymmetrically.
 
An arrangement for a [[Double-focusing Mass Spectrometer|double-focusing mass spectrometer]] in which a deflection of &pi;/2 radians in a radial electrostatic field analyser is followed by a [[magnetic deflection]] of &pi;/3 radians. The [[electrostatic analyser]] uses a symmetrical object-image arrangement and the magnetic analyser is used asymmetrically.

Revision as of 17:10, 18 July 2009

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Orange Book

ORANGE BOOK DEFINITION

IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979.

Nier-Johnson geometry

An arrangement for a double-focusing mass spectrometer in which a deflection of π/2 radians in a radial electrostatic field analyser is followed by a magnetic deflection of π/3 radians. The electrostatic analyser uses a symmetrical object-image arrangement and the magnetic analyser is used asymmetrically.

IUPAC 1997 Orange Book Chapter 12
Index of Orange Book Terms


See also

External links