Difference between revisions of "Conversion dynode"

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Surface that is held at high potential such that ions striking the surface produce electrons that are subsequently detected.
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A conversion [[dynode]] is used to increase the secondary emission characteristics for heavy ions and thus reduce the mass discrimination of the detector. A high potential, of opposite polarity to the ions detected, is used to attract these ions to the dynode. [[Secondary electron]]s are produced when the ions hit the dynode and are subsequently recorded via the detector used.
 
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Surface that is held at high potential so that ions striking the surface produce secondary charged particles that are subsequently detected.
 
 
Note: For positive ions, the potential is negative and the secondary particles are electrons and negative ions. For negative ions, the potential is positive and the secondary particles are positive ions.
 
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#R. J. Beuhler, L. Friedman. Int. J. Mass Spectrom. Ion Phys. 23, 81-97 (1977).
 
#G. C. Stafford. Environ. Health Perspect. 36, 85 (1980).
 
#K. Rinn, A. Muller, H. Eichenauer, E. Salzborn. Rev. Sci. Instrum. 53, 829-837 (1982).
 
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== See also ==
 
*[[Dynode]]
 
  
 
[[Category:Detection]]
 
[[Category:Detection]]
{{DEFAULTSORT:Conversion Dynode}}
 

Revision as of 03:52, 4 November 2013

IUPAC RECOMMENDATIONS 2013
Conversion dynode
Related Term(s):
Reference(s):
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

Index of Recommended Terms