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Plateau formation on accelerating wakefield for electron-witness-bunch and on decelerating wakefield for driver-bunches in a plasma

Plasma wakefield acceleration promises compact sources of high-brightness relativistic electron and positron beams. Applications (particle colliders and free-electron lasers) of plasma wakefield accelerators demand low energy spread beams and high-efficiency operation. Achieving both requires platea...

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Bibliographic Details
Main Authors: Maslov, V.I., Ovsiannikov, R.T., Bondar, D.S., Levchuk, I.P., Onishchenko, I.N.
Format: Article
Language:English
Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2021
Series:Вопросы атомной науки и техники
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Online Access:http://dspace.nbuv.gov.ua/handle/123456789/195644
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Summary:Plasma wakefield acceleration promises compact sources of high-brightness relativistic electron and positron beams. Applications (particle colliders and free-electron lasers) of plasma wakefield accelerators demand low energy spread beams and high-efficiency operation. Achieving both requires plateau formation on both the accelerating field for witness-bunch and the decelerating fields for driver-bunches by controlled beam loading of the plasma wave with careful tailored current profiles. We demonstrate by numerical simulation by 2.5D PIC code LCODE such optimal beam loading in a linear and blowout electron-driven plasma accelerator with RF generated low and high beam charge and high beam quality.