The 2 PW/1 Hz laser system for laser-driven proton tumor therapy facility CLAPA- II : Compact laser plasma accelerator II

Review of Scientific Instruments 2026

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Authors: Minjian Wu, Hailong Zhang, Yixing Geng, Olivier Chalus, Gilles Rey, Alain Pellegrina, Philippe Fichot, Vincent Leroux, Chang Liu, Yanying Zhao, Xueqing Yan
DOI: 10.1063/5.0322895
Cited by: 1
References: 27

Abstract

In this paper, we report the recent progress on the 2 PW/1 Hz laser system for laser-driven proton tumor therapy facility CLAPA-II [Kedong et al., Phys. Rev. Accel. Beams 23, 111302 (2020)], and the system is currently capable of outputting a maximum single-pulse laser energy of 71.9 J, a pulse width of 29 fs, and a peak power of 2.48 PW for high-power fs lasers. In terms of laser quality parameters, ps contrast is better than 1012, and ns contrast is 2 × 1010. In terms of laser stability, the horizontal and vertical angular pointing fluctuations over 500 shots were measured to be 1.04 and 0.797 μrad, respectively. The device has currently been deployed in laser acceleration experiments.

Fields of Study & Subjects

Laser-Plasma Interactions and Diagnostics Solid State Laser Technologies Particle Accelerators and Free-Electron Lasers

Publication details

Journal / source
Review of Scientific Instruments
Publisher
AIP Publishing
Volume
97
Issue
5
Publication date
1 May 2026
Language
EN