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

Optical and laser systems for the AWAKE run 2C experiment

TUPS111
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC3.A22 Plasma Wakefield Acceleration Tuesday Poster Session

Speaker

Eduardo Granados (European Organization for Nuclear Research)

Description

In the AWAKE Run 2c experiment, two electron beams are injected into two separate rubidium (Rb) vapour sources. The first electron beam initiates the self-modulation of a proton bunch in the first vapour source, while the second electron beam serves as a witness beam for plasma wakefield acceleration with low energy spread in the second vapour source. This setup requires the precise spatio-temporal delivery of four laser beams: two deep UV beams that generate the electron beams with a relative timing jitter well below 100 fs, and two near-IR beams that ionize efficiently the Rb vapour sources. The UV pulses are generated by an established Yb laser system, capable of producing 400 uJ, 0.2-10 ps pulses at 257 nm with high reliability (<0.1% RMS energy fluctuation), and enables emittance optimization via spatial beam shaping. The same system is used for both electron sources, utilizing a partial reflector to split the beam and account for differing photocathode yields. For the Rb ionizing pulses, which are directed into the vapour sources in a counter-propagating geometry, the pulses from the AWAKE Ti:Sapphire laser system are transported using a series of vacuum relay telescopes.

Region represented Europe
Paper preparation format LaTeX

Author

Eduardo Granados (European Organization for Nuclear Research)

Co-authors

Andrea Latina (European Organization for Nuclear Research) Anton Eager (European Organization for Nuclear Research) Baptiste Groussin (European Organization for Nuclear Research) Benjamin Woolley (European Organization for Nuclear Research) Edda Gschwendtner (European Organization for Nuclear Research) Miguel Martinez-Calderon (European Organization for Nuclear Research) Nicolas Chritin (European Organization for Nuclear Research) Stefano Mazzoni (European Organization for Nuclear Research) Steffen Doebert (European Organization for Nuclear Research) Valentin Fedosseev (European Organization for Nuclear Research) Vlad Musat (European Organization for Nuclear Research)

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