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About the dynamics and thermodynamics of trapped ions

Abstract : This tutorial introduces the dynamics of charged particles in a radiofrequency trap in a very general manner to point out the differences between the dynamics in a quadrupole and in a multipole trap. When dense samples are trapped, the dynamics is modified by the Coulomb repulsion between ions. To take into account this repulsion, we propose to use a method, originally developed for particles in Penning trap, that model the ion cloud as a cold fluid. This method can not reproduce the organisation of cold clouds as crystals but it allows one to scale the size of large samples with the trapping parameters and the number of ions trapped, for different linear geometries of trap.
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Submitted on : Thursday, May 14, 2009 - 9:54:03 AM
Last modification on : Tuesday, October 19, 2021 - 10:49:18 PM
Long-term archiving on: : Wednesday, September 22, 2010 - 12:08:03 PM


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Caroline Champenois. About the dynamics and thermodynamics of trapped ions. Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2009, en preparation, pp.00. ⟨10.1088/0953-4075/42/15/154002⟩. ⟨hal-00361854v2⟩



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