Shielded transient self-interaction of a bunch entering a circle from a straight path

Rui Li; Courtlandt L. Bohn; Joseph J. Bisognano

doi:10.1117/12.293364

1 November 1997 Shielded transient self-interaction of a bunch entering a circle from a straight path

Rui Li, Courtlandt L. Bohn, Joseph J. Bisognano

Proceedings Volume 3154, Coherent Electron-Beam X-Ray Sources: Techniques and Applications; (1997) https://doi.org/10.1117/12.293364
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Recent developments in electron-gun and injector technologies enable production of short, high-charge bunches. In this parameter regime,the curvature effect on the bunch self-interaction, by way of coherent synchrotron radiation (CSR) and space-charge forces as the beam traverse magnet bends, may cause serious emittance degradation. In this paper, we study an electron bunch orbiting between two infinite, parallel conducting plates. The bunch moves on a trajectory from a straight path to a circular orbit and begins radiating. Transient effects, arising from CSR and space-charge forces generated from source particles both on the bend and on the straight path prior to the bend, are analyzed using Lienard-Wiechert fields, and their overall net effect is obtained. The influence of the plates on the transients is contrasted to their shielding of the steady- state radiated power. Results for emittance degradation induced by this self-interaction are also presented.

Citation Download Citation

Rui Li, Courtlandt L. Bohn, and Joseph J. Bisognano "Shielded transient self-interaction of a bunch entering a circle from a straight path", Proc. SPIE 3154, Coherent Electron-Beam X-Ray Sources: Techniques and Applications, (1 November 1997); https://doi.org/10.1117/12.293364

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