ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
We have developed a method to mass selectively eject ions confined in a novel ion trap; an external quadrupole static attraction ion trap (EQSIT). The resonance ion ejection method is based on the resonance between the secular oscillation of trapped ions and a periodic external field to modulate the trapping potential. We applied the method to a system of hydrogenated silicon cluster ions, SinHx+ and SinHx2+ grown in the EQSIT, and found that only predetermined cluster ions were eliminated from the EQSIT. The method makes it possible not only to eject the confined ions mass selectively from the trap, but also to observe resonance ion ejection spectra of the secular oscillation of the trapped ions. For example, we measured resonance ion ejection spectra of rare gas ions, He+ and Ar+, and thereby analyzed the secular oscillation of the trapped ions. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1380683
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