Beauchamp, J. L. and Armstrong, John T. (1969) An Ion Ejection Technique for the Study of Ion-Molecule Reactions with Ion Cyclotron Resonance Spectroscopy. Review of Scientific Instruments, 40 (1). pp. 123-128. ISSN 0034-6748. http://resolver.caltech.edu/CaltechAUTHORS:BEArsi69
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A novel technique involving a straightforward modification of an ion cyclotron resonance spectrometer has been developed which utilizes the excitation of the characteristic oscillatory motion of the ions, due to the trapping field, for ejecting ions from the cyclotron resonance cell. By pulsing the rf ejection field and referencing the detection system to the pulsing frequency, a spectrum of ions whose number density is modulated by the pulsed ejection field is obtained. This is directly applicable in studying ion-molecule reactions for the determination of product ion distributions, even when other processes, such as direct ionization or concurrent ion-molecule reactions, contribute to product ions of interest.
|Additional Information:||© 1969 The American Institute of Physics. Received 12 September 1968. The authors wish to acknowledge the assistance of John Henigman in performing circuit modifications. One of us (J.T.A.) wishes to thank the National Science Foundation for financial support. This work has been supported by the Atomic Energy Commission under Contract No. AT(04-3)-757. [J.L.B. was an] Alfred P. Sloan fellow. [J.T.A. was a] National Science Foundation Undergraduate Research Participant (1968). Arthur Amos Noyes Laboratory of Chemical Physics, Contribution No. 3748.|
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|Deposited On:||17 Jan 2009 09:01|
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