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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hess, M. Pakter, R. Chen, C. |
| Copyright Year | 1999 |
| Description | Author affiliation: Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA (Hess, M.) |
| Abstract | Summary form only given, as follows. Green's functions for Maxwell equations can provide a powerful technique for the modeling of high-intensity microwave sources and high-intensity particle accelerators. We present both, two- and three-dimensional models of space charge in intense charged particle beams. Specifically, we compute the Green's function for a point charge located inside of a perfectly conducting drift tube with periodic boundary conditions. As an application of the two-dimensional Green's function, we study the effect of current oscillations and associated envelope oscillations on inducing beam halos in intense relativistic electron beams in periodic permanent magnet focusing and uniform solenoidal focusing klystrons. For system parameters corresponding to the SLAC PPM Klystron experiment, we find that a sizeable initial envelope mismatch produces halo particles with a maximum radius extending to several core radii at the output section. An eigenfunction expansion technique is utilized for the computation of the three-dimensional Green's function. We show the agreement of the function with electrostatic potentials that can be computed exactly, i.e. potential due to an on axis distribution with infinite conductor radius. Results from multi-particle simulations obtained from this function are presented. |
| File Size | 115818 |
| File Format | |
| ISBN | 0780352246 |
| ISSN | 07309244 |
| DOI | 10.1109/PLASMA.1999.829194 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-06-24 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Space charge Electron beams Green's function methods Klystrons Maxwell equations Microwave theory and techniques Linear particle accelerator Particle beams Boundary conditions Permanent magnets |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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