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Other Keywords |
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| WEP043 |
Multi-Energy Operation Analysis in a Superconducting Linac Based on off-Frequency Detune Method |
linac, SRF, undulator, electron |
416 |
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- Z. Zhang, C. Adolphsen, Y. Ding, T.O. Raubenheimer
SLAC, Menlo Park, California, USA
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The free-electron laser facilities driven by a superconducting radio-frequency (SRF) linac provide high-repetition-rate electron beam, which makes it feasible to feed multiple undulator lines at the same time. In this paper, we study a method of controlling the beam energy of multiple electron bunches by off-frequency detuning of the SRF linac. Based on the theoretical analysis, we present the optimal solutions of the method and the strategy to allocate linac energy for each possible off-frequency detune. The initial acceleration phases before detuning of the SRF linac can be optimized to reduce the necessary SRF linac energy overhead. We adopt the LCLS-II-HE configuration as an example to discuss possible schemes for two undulator lines.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-FEL2019-WEP043
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| About • |
paper received ※ 20 August 2019 paper accepted ※ 27 August 2019 issue date ※ 05 November 2019 |
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