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@inproceedings{ovsiannikov:ipac2021-tupab157,
author = {R.T. Ovsiannikov and I.P. Levchuk (Yarovaya) and V.I. Maslov and I.N. Onishchenko},
title = {{Obtaining Long Accelerated Electron Bunch of Good Quality in Plasma Wakefield Accelerator at High Transformer Ratio}},
booktitle = {Proc. IPAC'21},
pages = {1750--1752},
eid = {TUPAB157},
language = {english},
keywords = {wakefield, plasma, electron, acceleration, simulation},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-TUPAB157},
url = {https://jacow.org/ipac2021/papers/tupab157.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB157},
abstract = {{The efficiency of electron acceleration by a wakefield, excited in a plasma by an electron bunch, is determined by the transformer ratio (see *, **). The transformer ratio is the ratio of energy acquired by the witness to energy lost by the driver. The transformer ratio can be increased by shaping driver-bunch. In this work, using a non-linear version of the 2d3v code lcode (see ***), numerical simulation of excitation of a wakefield in a plasma in blowout regime by a shaped relativistic electron bunch was performed. There is also the problem of maintaining the small dimension and small energy spread of the accelerated electron bunch while maintaining sufficient values of the accelerating gradient and the transformer ratio. Also, the question arises about the values of the limiting dimension of the witness-bunch at which the acceleration process is stable. Numerical simulation solves the problem of electron bunch acceleration of the best quality with simultaneous maximization of the transformer ratio and maximization of the witness bunch length, at which the accelerating gradient and the focusing force are constant.}},
}