Nier-Johnson geometry

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Orange Book Entry

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


Related Terms

Double-focusing Mass Spectrometer

Forward Geometry

Electric Sector

Magnetic Sector