| Paper |
Title |
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| MOPA34 |
Noise in Intense Electron Bunches |
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- S. Nagaitsev, D.R. Broemmelsiek, J.D. Jarvis, A.H. Lumpkin, J. Ruan, G.W. Saewert, R.M. Thurman-Keup
Fermilab, Batavia, Illinois, USA
- Z. Huang, G. Stupakov
SLAC, Menlo Park, California, USA
- Y.K. Kim
University of Chicago, Chicago, Illinois, USA
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We report on our investigations into density fluctuations in electron bunches. Noise and density fluctuations in relativistic electron bunches, accelerated in a linac, are of critical importance to various Coherent Electron Cooling (CEC) concepts as well as to free-electron lasers (FELs). For CEC, the beam noise results in additional diffusion that counteracts cooling. In SASE FELs, a microwave instability starts from the initial noise in the beam and eventually leads to the beam microbunching yielding coherent radiation, and the initial noise in the FEL bandwidth plays a useful role. In seeded FELs, in contrast, such noise interferes with the seed signal, so that reducing noise at the initial seed wavelength would lower the seed laser power requirement. Status of the project will be presented.
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Poster MOPA34 [0.638 MB]
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-NAPAC2022-MOPA34
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| About • |
Received ※ 10 August 2022 — Revised ※ 11 August 2022 — Accepted ※ 14 August 2022 — Issue date ※ 24 August 2022 |
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