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✦   LIBER   ✦

Sharing a Pair of Electrodes between Excitation and Detection in a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer

✍ Scribed by Gérard Mauclaire; Joël Lemaire; Michel Heninger

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
298 KB
Volume
10
Category
Article
ISSN
0951-4198

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✦ Synopsis

Time-sharing of electrodes between excitation and detection for Fourier transform (lT) study of the coherent cyclotron motion of ions is discussed, together with the choice of a suitable commutation device. A practical implementation is described, and the application to an open-end, flat, ion cyclotron resonance cell presented. In addition, the switching technique described is useful to minimise ion losses due to resistive damping at the magnetron frequencies, and could also be used in conventional FT ion cyclotron resonance cells for quadrupolar excitation and detection, and for ion axialization.

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