Difference between revisions of "Conversion dynode"

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{{Def2|
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{{Final
Surface that is held at high potential such that ions striking the surface produce electrons that are subsequently detected.
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|def=Surface that is held at high potential so that [[ion]]s striking the surface produce secondary charged particles that are subsequently detected.
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:Note: For positive ions, the potential is negative and the secondary particles are [[wikipedia:electron|electron]]s and negative ions. For negative ions, the potential is positive and the secondary particles are positive ions.
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|ref=R. J. Beuhler, L. Friedman. Int. J. Mass Spectrom. Ion Phys. 23, 81 (1977). (http://dx.doi.org/10.1016/0020-7381(77)80091-0 )
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G. C. Stafford. Environ. Health Perspect. 36, 85 (1980). (http://dx.doi.org/10.1289/ehp.803685 )
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K. Rinn, A. Muller, H. Eichenauer, E. Salzborn. Rev. Sci. Instrum. 53, 829 (1982). (http://dx.doi.org/10.1063/1.1137055 )
  
==Alternate==
 
  
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{{psims}}1000346
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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== See also ==
 
*[[Dynode]]
 
  
 
[[Category:Detection]]
 
[[Category:Detection]]
{{DEFAULTSORT:Conversion Dynode}}
 

Latest revision as of 14:05, 14 September 2014

IUPAC RECOMMENDATIONS 2013
Conversion dynode
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.
Related Term(s):
Reference(s):

R. J. Beuhler, L. Friedman. Int. J. Mass Spectrom. Ion Phys. 23, 81 (1977). (http://dx.doi.org/10.1016/0020-7381(77)80091-0 )

G. C. Stafford. Environ. Health Perspect. 36, 85 (1980). (http://dx.doi.org/10.1289/ehp.803685 )

K. Rinn, A. Muller, H. Eichenauer, E. Salzborn. Rev. Sci. Instrum. 53, 829 (1982). (http://dx.doi.org/10.1063/1.1137055 )

PSI-MS:

http://purl.obolibrary.org/obo/MS_1000346
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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