Very short-range wakefields in strongly tapered disk-loaded waveguide structures
Very short-range wakefields in strongly tapered disk-loaded waveguide structures are investigated in the regime where the so-called “catch-up” distance is much larger than the length of the tapered structure. It is shown that in this case the very short-range wakefields are not being an average over...
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2012-12-01
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Series: | Physical Review Special Topics. Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevSTAB.15.121001 |
Summary: | Very short-range wakefields in strongly tapered disk-loaded waveguide structures are investigated in the regime where the so-called “catch-up” distance is much larger than the length of the tapered structure. It is shown that in this case the very short-range wakefields are not being an average over all irises of the tapered structure; instead they are dominated by the irises with the smallest aperture radius. A new analytical model for short-range wakefield calculation in this regime is proposed. The results of the analytical model and numerical simulations are compared for the case of X-band accelerating structures. |
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ISSN: | 1098-4402 |