Cold-fluid equilibrium for a corkscrewing elliptic beam in a variably focusing channel
dc.contributor.author | Pakter, Renato | pt_BR |
dc.contributor.author | Chen, Chiping | pt_BR |
dc.date.accessioned | 2014-09-23T02:12:42Z | pt_BR |
dc.date.issued | 2000 | pt_BR |
dc.identifier.issn | 1063-651X | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/103659 | pt_BR |
dc.description.abstract | It is shown that there exists a new class of cold-fluid corkscrewing elliptic beam equilibria for ultrahigh-brightness, space-charge-dominated beam propagation through a linear focusing channel consisting of uniform solenoidal, periodic solenoidal, and/or alternating-gradient quadrupole focusing magnets in an arbitrary arrangement including field tapering. The equilibrium beam density and flow velocity profiles and equilibrium self-electric and self-magnetic fields are determined by solving generalized beam envelope equations. In proper limits, such cold-fluid corkscrewing elliptic beam equilibria recover many familiar beam equilibria in beam physics, including the round rigid-rotor Vlasov beam equilibria in uniform and periodic solenoidal focusing fields and the Kapchinskij-Vladimirskij beam equilibrium in an alternating-gradient quadrupole focusing field. For beams with negligibly small emittance, the equilibrium solutions are validated with self-consistent simulations. Examples and applications of the present equilibrium beam theory are discussed. As an important application of the present equilibrium beam theory, a general technique is developed and demonstrated with an example to control large-amplitude density and flow velocity fluctuations (such as beam hollowing and halo formation) often observed in ultrahigh-brightness beams. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. E, Statistical physics, plasmas, fluids and related interdisciplinary topics. Melville. Vol. 62, no. 2 (Aug. 2000), p. 2789-2796 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física | pt_BR |
dc.title | Cold-fluid equilibrium for a corkscrewing elliptic beam in a variably focusing channel | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000274931 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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