Coherent Coupling Criterion for Three-Dimensional Halo Formation [electronic resource]
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| Online Access: |
Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1999.
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| Abstract: | In this paper we study coupling between the transverse and longitudinal degrees-of-freedom in intense, rms mis-matched charged particle beams. We find that a coherent (2:1, i.e., parametric) resonance between the transverse and longitudinal mismatch eigenmodes has the effect that a transverse ''breathing mode'' mismatch can excite a longitudinal mismatch and halo. If the resonance condition is not satisfied we find practically no coupling. We compare results obtained with the 3D rms envelope equations in a uniform focusing channel with those obtained using large scale, 3D parallel Particle-In-Cell (PIC) simulations. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 03/29/1999. "LA-UR-99-2181" Particle Accelerator Conference, New York, NY (US), 03/29/1999--04/02/1999. Ryne, R.D.; Qiang, J.; Hofmann, I. |
| Physical Description: | vp. |