Equilibrium and stability of off-axis periodically focused particle beams |
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| Authors: | Moraes J S Pakter R Rizzato F B |
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| Institution: | Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970 Porto Alegre, Rio Grande do Sul, Brasil. jsmoraes@if.ufrgs.br |
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| Abstract: | A general equation for the centroid motion of free, continuous, intense beams propagating off axis in solenoidal periodic focusing fields is derived. The centroid equation is found to be independent of the specific beam distribution and may exhibit unstable solutions. A new Vlasov equilibrium for off-axis beam propagation is also obtained. The properties of the equilibrium and the relevance of centroid motion to beam confinement are discussed. |
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