Anders, L. R. and Beauchamp, J. L. and Dunbar, R. C. and Baldeschwieler, John D. (1966) Ion-Cyclotron Double Resonance. Journal of Chemical Physics, 45 (3). pp. 1062-1063. ISSN 0021-9606 http://resolver.caltech.edu/CaltechAUTHORS:ANDjcp66
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A charged particle in a uniform moving magnetic field H describes a circular orbit in a plance perpendicular to H with an angular frequency or "cyclotron frequency" omagae. When an alternating electric field E(t) is applied normal to H at omegae, the ions absorb energy from the alternating electric field, and are accelerated to larger velocities and orbital radii.  The absorption of energy from E(t) at the cyclotron resonance frequency can be conveniently detected using a marginal oscillator detector. When the ions accelerated by E(t) collide with other particles, they lose some of their excess energy. A mixture of ions and neutral molecules in the presence of H and E(t) then reaches a steady-state condition in which the energy gained by the ions from E(t) between collisions is lost to the neutral molecules in collisions.
|Additional Information:||Copyright © 1966 American Institute of Physics (Received 22 April 1966) The support of the the National Science Foundation under grant GP-4924 is gratefully acknowledged. The basic spectrometer was designed by Dr. Peter Llewellyn and constructed by Varian Associates. The spectrometer design and the double resonance experiment will be described in detail in a later publication. [L.R.A. and J.L.B. were] NSF Predoctoral Fellows.|
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|Deposited On:||08 Jun 2006|
|Last Modified:||26 Dec 2012 08:54|
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