Longitudinal Beam Splitting And Coalescing Using An Off-Momentum Drifting Barrier Bucket
PHYSICAL REVIEW ACCELERATORS AND BEAMS(2021)
摘要
There has been much research on longitudinal bunch splitting and coalescing for accelerator performance improvements in rf synchrotrons. In this paper, we report a scheme with several induction cells that goes beyond the limitation in which the phase drift speed of beam buckets must be much lower than that of the maximum off-momentum particles to minimize longitudinal emittance blowup. In principle, additional pulse acceleration voltages can be applied to produce a momentum jump of the beam and save beam manipulation time, which is crucial for fast-cycling synchrotrons with limited injection and extraction times. This paper compares the new and conventional schemes with experimental results. Finally, the beam behaviors are discussed with macroparticle simulations.
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关键词
longitudinal beam splitting,off-momentum
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