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FR1A04 |
Ion Effects in High Brightness Electron Linac Beams |
1032 |
SPWR030 |
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- S.J. Full, A.C. Bartnik, I.V. Bazarov, J. Dobbins, B.M. Dunham, G.H. Hoffstaetter, K. J. Smith
Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
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Electron beams ionize rest gas particles which then accumulate around them, disturbing beam dynamics and causing background radiation. While this effect has been predicted in the past, linacs have hitherto not suffered from it because of their rather small beam current. The effect of ions increases with larger currents and smaller cross sections of the beam, and it has clearly been observed in Cornell's high-brightness ERL injector for the first time. This presentation will show experimental evidence for ions, demonstrate strategies for their elimination, and will compare the experimental data to theories of beam-ion interactions.
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Slides FR1A04 [5.995 MB]
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Poster FR1A04 [2.630 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-LINAC2016-FR1A04
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