10–15 Aug 2025
SAFE Credit Union Convention Center
America/Los_Angeles timezone

Generation of electron beam current spike for short pulse generation with two lasers

TUP047
12 Aug 2025, 16:00
2h
SAFE Credit Union Convention Center

SAFE Credit Union Convention Center

1401 K St, Sacramento, CA 95814
Poster Presentation MC5 – Beam Dynamics and EM Fields TUP: Tuesday Poster Session

Speaker

Tianzhe Xu (SLAC National Accelerator Laboratory)

Description

Formation of current spike in electron bunch has direct implication for attosecond pulse generation in XFEL. In this paper, we present start-to-end simulation for tunable, short current spike generation in the LCLS copper linac using photocathode laser shaping. Our approach uses two stacked laser pulses—a long and a short pulse—to imprint a small modulation in the electron bunch as it is created in the injector. This initial modulation is then amplified as the bunch travels through the downstream bunch compressors, ultimately forming a sharp current spike. We also discuss how different shapes of the initial laser pulses influence the final current profile and the efficiency of spike generation.

I have read and accept the Privacy Policy Statement Yes
Please consider my poster for contributed oral presentation No
Would you like to submit this poster in student poster session on Sunday (August 10th) No

Author

Tianzhe Xu (SLAC National Accelerator Laboratory)

Co-authors

Agostino Marinelli (SLAC National Accelerator Laboratory) Aliaksei Halavanau (SLAC National Accelerator Laboratory) Nicolas Burdet (SLAC National Accelerator Laboratory) River Robles (Stanford University) Thomas Jogand-Coulomb (SLAC National Accelerator Laboratory) Veronica Guo (Stanford University)

Presentation materials

There are no materials yet.