期刊
PHYSICAL REVIEW ACCELERATORS AND BEAMS
卷 23, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevAccelBeams.23.054402
关键词
-
资金
- Gordon and Betty Moore Foundation [GBMF4744]
- German Federal Ministry of Education and Research [05K16RDB]
Due to the tiny apertures of dielectric laser acceleration grating structures within the range of the optical wavelength, wakefields limit the bunch charge for relativistic electrons to a few femtocoulomb. In this paper, we present a wakefield upgrade of our six-dimensional tracking scheme DLAtrack6D in order to analyze these limitations. Simulations with CST Studio Suite provide the wake functions to calculate the kicks within each tracking step. Scaling laws and the dependency of the wake on geometrical changes are calculated. The tracking with wakefields is applied to beam and structure parameters following recently performed and planned experiments. We compare the results to analytical models and identify intensity limits due to the transverse beam breakup and strong head-tail instability. Furthermore, we reconstruct phase advance spectrograms and use them to analyze possible stabilization mechanisms.
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