Contribution to a conference proceedings/Contribution to a book

PUBDB-2024-07478

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Twin-bunch modelling in linear accelerators for plasma wakefield acceleration

Long, T. (Corresponding author)XFEL.EU*DESY* ; Boulton, L. A.Extern*DESY* ; Chen, Y. L.DESY* ; Decking, W.XFEL.EU*DESY* ; Scholz, M.DESY* ; Wesch, S.DESY* ; Wood, J. C.DESY* ; Björklund Svensson, J.

2025
JACoW Publishing Geneva
ISBN: 978-3-95450-248-6

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Please use a persistent id in citations: doi:10.18429/JACoW-IPAC2025-TUPM089  doi:10.3204/PUBDB-2024-07478

Abstract: Twin electron bunches accelerated by high-energy linacs are attracting increasing interest especially in twin free-electron laser (FEL) pulse generation and beam-driven plasma wakefield acceleration (PWFA) studies. High-energy linacs may benefit from plasma accelerators, where a trailing bunch is accelerated in GV/m fields in a plasma wave driven by the leading bunch. This could facilitate high-energy physics, as well as greatly increase the available photon energy range of existing FELs without increasing the footprint. Here, initial analytical studies of twin-bunch generation in FLASH accelerator are carried out. With the initial beam longitudinal phase space properly tuned by temporally shaping the photocathode laser, together with optimizing linac settings, high-quality twin electron bunches with tunable delay and simultaneous bunch shaping can be generated, which is essential for energy-efficient PWFA with low energy spread.

Keyword(s): Accelerator Physics ; mc3-novel-particle-sources-and-acceleration-techniques - MC3: Novel Particle Sources and Acceleration Techniques ; MC3.A16 - MC3.A16 Advanced Concepts

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Contributing Institute(s):

1. Beam-Driven Plasma Accelerators (MPA2)
2. Koordination des XFEL-Beschleunigers (MXL)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 6G13 - Accelerator of European XFEL (POF4-6G13) (POF4-6G13)

Experiment(s):

1. Facility (machine) XFEL
2. FLASHForward

Appears in the scientific report 2025

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