The design and the early commissioning of the ELI-Beamlines laser facility’s 30 J, 30 fs, 10 Hz HAPLS (High-repetition-rate Advanced Petawatt Laser System) beam transport (BT) system to the P3 target chamber are described in detail. It is the world’s first and with 54 m length, the longest distance high average power petawatt (PW) BT system ever built. It connects the HAPLS pulse compressor via the injector periscope with the 4.5 m diameter P3 target chamber of the plasma physics group in hall E3. It is the largest target chamber of the facility and was connected first to the BT system. The major engineering challenges are the required high vibration stability mirror support structures, the high pointing stability optomechanics as well as the required levels for chemical and particle cleanliness of the vacuum vessels to preserve the high laser damage threshold of the dielectrically coated high-power mirrors. A first commissioning experiment at low pulse energy shows the full functionality of the BT system to P3 and the novel experimental infrastructure.

中文翻译：

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ELI-Beamlines 高功率、高重复率 HAPLS 激光束传输系统到 P3 的设计、安装和调试

详细描述了 ELI-Beamlines 激光设施的 30 J、30 fs、10 Hz HAPLS（高重复率先进拍瓦激光系统）光束传输 (BT) 系统到 P3 靶室的设计和早期调试。它是世界上第一个长度为 54 m、距离最长的高平均功率拍瓦 (PW) BT 系统。它通过喷射器潜望镜将HAPLS脉冲压缩器与E3厅等离子体物理组直径4.5m的P3靶室连接起来。它是该设施最大的靶室，首先连接到 BT 系统。主要的工程挑战是所需的高振动稳定性反射镜支撑结构，高指向稳定性光学机械以及真空容器的化学和颗粒清洁度所需的水平，以保持介电涂层高功率反射镜的高激光损伤阈值。低脉冲能量下的第一次调试实验显示了 BT 系统对 P3 的全部功能和新颖的实验基础设施。