19–24 May 2024
Music City Center
US/Central timezone

Staging of high-efficiency and high-quality laser-plasma accelerators for collider applications

TUBN3
21 May 2024, 12:10
20m
Room 104 (Music City Center)

Room 104

Music City Center

201 Rep. John Lewis Way S, Nashville, TN 37203, USA
Contributed Oral Presentation MC3.A22 Plasma Wakefield Acceleration TUBN: Novel Particle Sources and Acceleration Techniques (Contributed)

Speaker

Davide Terzani (Lawrence Berkeley National Laboratory)

Description

The viability of next generation, compact, TeV-class electron-positron colliders based on staging of independently-powered plasma-based accelerators relies on the possibility of accelerating high-charge bunches to high energy with high efficiency and high accelerating gradient, while maintaining a small energy spread and emittance. Achieving a small energy spread with high-efficiency requires employing witness bunches with optimally tailored current profiles (optimal beamloading). Such profiles are analytically known in the case of plasma-wakefield accelerators operating in the blowout regime, while in the case of laser-plasma accelerators (LPAs) can only by computed numerically, and their determination requires, among other things, taking into account the laser driver evolution. A small bunch energy spread is a necessary condition to enable staging and minimize emittance degradation from chromaticity when bunches are transported from one plasma accelerator stage to the following one. In this contribution we will discuss examples of LPA stages operating in different regimes, namely a self-guided stage in the nonlinear regime and a quasi-linear stage in a hollow plasma channel, providing high-gradient, high-efficiency, and quality-preserving acceleration of bunches for collider applications. We will present, for each example, the current profile distribution for optimal beamloading, and we will analyze bunch emittance degradation when staging of such LPAs is considered.

Funding Agency

Work supported by the Director, Office of Science, Office of High Energy Physics, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.

Region represented North America
Paper preparation format LaTeX

Primary author

Carlo Benedetti (Lawrence Berkeley National Laboratory)

Co-authors

Carl Schroeder (Lawrence Berkeley National Laboratory) Davide Terzani (Lawrence Berkeley National Laboratory) Eric Esarey (Lawrence Berkeley National Laboratory) Stepan Bulanov (Lawrence Berkeley National Laboratory)

Presentation materials

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