IUPAC > Gold Book > alphabetical index > N > Nier–Johnson geometry
icon


Indexes

Nier–Johnson geometry
An arrangement for a double-focusing mass spectrometer in which a deflection of Math - ei radians in a radial electrostatic field analyser is followed by a magnetic deflection of Math - ei radians. The electrostatic analyser uses a symmetrical object-image arrangement and the magnetic analyser is used asymmetrically.
Source:
PAC, 1991, 63, 1541 (Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)) on page 1546
Interactive Link Maps
First LevelSecond LevelThird Level
GraphGraphGraph
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2008-10-07; version: 2.0.2.
DOI of this term: doi:10.1351/goldbook.N04141.
Original PDF version (may be out of date): http://www.iupac.org/goldbook/N04141.pdf.
Version for print | History of this term
picture