Magnetic field scan: Difference between revisions
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:''Note 1'': The magnetic field scan is sometimes called B-scan, but this is a misnomer since the symbol B denotes the [[wikipedia:magnetic flux|magnetic flux]] density. The magnetic field strength H in a vacuum is defined in SI units as H = (1/μ<sub>0</sub>) B -M where μ<sub>0</sub> is the [[wikipedia:vacuum permeability|magnetic constant]] or permeability of the vacuum and M the [[wikipedia:magnetization|magnetization]]. B is often wrongly referred to as "magnetic field strength." | :''Note 1'': The magnetic field scan is sometimes called B-scan, but this is a misnomer since the symbol B denotes the [[wikipedia:magnetic flux|magnetic flux]] density. The magnetic field strength H in a vacuum is defined in SI units as H = (1/μ<sub>0</sub>) B -M where μ<sub>0</sub> is the [[wikipedia:vacuum permeability|magnetic constant]] or permeability of the vacuum and M the [[wikipedia:magnetization|magnetization]]. B is often wrongly referred to as "magnetic field strength." | ||
:''Note 2'': A sector magnetic field produces a momentum/charge spectrum of an ion beam, but if all ions have the same translational energy this is equivalent to a mass spectrum. The force F on a particle with charge q and velocity ''v'' is F = q(''v'' | :''Note 2'': A sector magnetic field produces a momentum/charge spectrum of an ion beam, but if all ions have the same translational energy this is equivalent to a mass spectrum. The force F on a particle with charge q and velocity ''v'' is F = q(''v'' x B). | ||
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Latest revision as of 14:56, 27 July 2022
IUPAC RECOMMENDATIONS 2013 |
Magnetic field scan |
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Method of producing a mass spectrum from a mono-energetic ion beam by varying the strength of the magnetic field in a sector mass spectrometer.
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Related Term(s): |
Reference(s):
IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979. Compiled by J. Inczédy, T. Lengyel, A. M. Ure. Blackwell Scientific Publications, Oxford (1997). On-line corrected version: http://www.iupac.org /publications/analytical compendium (2000). 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. |
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013. |
Orange Book
ORANGE BOOK DEFINITION
IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979 (see also Orange Book 2023) |
Magnetic field scan |
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The usual method of producing a momentum (mass) spectrum in instruments is by varying the strength of the magnetic field. |
IUPAC 1997 Orange Book Chapter 12 |
Index of Orange Book Terms |
Gold Book
GOLD BOOK DEFINITION
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). |
Magnetic field scan |
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http://goldbook.iupac.org/M03682.html The usual method of producing a momentum (mass) spectrum, by varying the strength of the magnetic field. 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 1550 |
IUPAC Gold Book |
Index of Gold Book Terms |