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Title: Combined centroid-envelope dynamics of intense, magnetically focused charged beams surrounded by conducting walls

Abstract

In this paper we analyze the combined envelope-centroid dynamics of magnetically focused high-intensity charged beams surrounded by conducting walls. Similar to the case where conducting walls are absent, it is shown that the envelope and centroid dynamics decouple from each other. Mismatched envelopes still decay into equilibrium with simultaneous emittance growth, but the centroid keeps oscillating with no appreciable energy loss. Some estimates are performed to analytically obtain characteristics of halo formation seen in the full simulations.

Authors:
; ;  [1]
  1. Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970, Porto Alegre, RS (Brazil)
Publication Date:
OSTI Identifier:
20782515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 13; Journal Issue: 2; Other Information: DOI: 10.1063/1.2170581; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 43 PARTICLE ACCELERATORS; BEAM DYNAMICS; BEAM EMITTANCE; COMPUTERIZED SIMULATION; EQUILIBRIUM; OSCILLATIONS; PARTICLE BEAMS; WALLS

Citation Formats

Fiuza, K., Rizzato, F.B., and Pakter, R. Combined centroid-envelope dynamics of intense, magnetically focused charged beams surrounded by conducting walls. United States: N. p., 2006. Web. doi:10.1063/1.2170581.
Fiuza, K., Rizzato, F.B., & Pakter, R. Combined centroid-envelope dynamics of intense, magnetically focused charged beams surrounded by conducting walls. United States. doi:10.1063/1.2170581.
Fiuza, K., Rizzato, F.B., and Pakter, R. Wed . "Combined centroid-envelope dynamics of intense, magnetically focused charged beams surrounded by conducting walls". United States. doi:10.1063/1.2170581.
@article{osti_20782515,
title = {Combined centroid-envelope dynamics of intense, magnetically focused charged beams surrounded by conducting walls},
author = {Fiuza, K. and Rizzato, F.B. and Pakter, R.},
abstractNote = {In this paper we analyze the combined envelope-centroid dynamics of magnetically focused high-intensity charged beams surrounded by conducting walls. Similar to the case where conducting walls are absent, it is shown that the envelope and centroid dynamics decouple from each other. Mismatched envelopes still decay into equilibrium with simultaneous emittance growth, but the centroid keeps oscillating with no appreciable energy loss. Some estimates are performed to analytically obtain characteristics of halo formation seen in the full simulations.},
doi = {10.1063/1.2170581},
journal = {Physics of Plasmas},
number = 2,
volume = 13,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2006},
month = {Wed Feb 15 00:00:00 EST 2006}
}