1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Twin-bunch modelling in linear accelerators for plasma wakefield acceleration

TUPM089
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC3.A16 Advanced Concepts Tuesday Poster Session

Speaker

Tianyun Long (Deutsches Elektronen-Synchrotron DESY)

Description

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.

Region represented Europe
Paper preparation format LaTeX

Author

Tianyun Long (Deutsches Elektronen-Synchrotron DESY)

Co-authors

Jonas Björklund Svensson (Lund University) Jonathan Wood (Deutsches Elektronen-Synchrotron DESY) Lewis Boulton (Deutsches Elektronen-Synchrotron DESY) Matthias Scholz (Deutsches Elektronen-Synchrotron DESY) Stephan Wesch (Deutsches Elektronen-Synchrotron DESY) Winfried Decking (Deutsches Elektronen-Synchrotron DESY) Dr Ye Chen (Deutsches Elektronen-Synchrotron DESY)

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