Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration

IF 5.2 1区物理与天体物理 Q1 OPTICS

High Power Laser Science and Engineering Pub Date : 2023-03-21 DOI:10.1017/hpl.2023.27

N. Xu, M. Streeter, O. Ettlinger, H. Ahmed, S. Astbury, M. Borghesi, N. Bourgeois, C. Curry, S. Dann, N. Dover, T. Dzelzainis, V. Istokskaia, M. Gauthier, L. Giuffrida, G. Glenn, S. Glenzer, R. Gray, J. Green, G. Hicks, C. Hyland, M. King, B. Loughran, D. Margarone, O. McCusker, P. McKenna, C. Parisuaña, P. Parsons, C. Spindloe, D. Symes, F. Treffert, C. Palmer, Z. Najmudin

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引用次数: 1

Abstract

Abstract We present the development and characterization of a high-stability, multi-material, multi-thickness tape-drive target for laser-driven acceleration at repetition rates of up to 100 Hz. The tape surface position was measured to be stable on the sub-micrometre scale, compatible with the high-numerical aperture focusing geometries required to achieve relativistic intensity interactions with the pulse energy available in current multi-Hz and near-future higher repetition-rate lasers ( $>$ kHz). Long-term drift was characterized at 100 Hz demonstrating suitability for operation over extended periods. The target was continuously operated at up to 5 Hz in a recent experiment for 70,000 shots without intervention by the experimental team, with the exception of tape replacement, producing the largest data-set of relativistically intense laser–solid foil measurements to date. This tape drive provides robust targetry for the generation and study of high-repetition-rate ion beams using next-generation high-power laser systems, also enabling wider applications of laser-driven proton sources.

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用于高重复率激光驱动质子加速的多功能磁带驱动靶

摘要:我们提出了一种高稳定性、多材料、多厚度的磁带驱动靶，用于重复频率高达100 Hz的激光驱动加速。测量结果表明，带表面位置在亚微米尺度上是稳定的，与高数值孔径聚焦几何形状兼容，以实现与当前多赫兹和近期更高重复频率激光器($>$ kHz)可用脉冲能量的相对论强度相互作用。长期漂移的特点是在100赫兹，证明了长时间操作的适用性。在最近的一次实验中，实验团队在没有干预的情况下，以高达5赫兹的频率连续操作目标，进行了7万次射击，除了更换磁带之外，产生了迄今为止最大的相对论强度激光固体箔测量数据集。这种磁带驱动器为下一代高功率激光系统的高重复率离子束的产生和研究提供了强大的靶标，也使激光驱动质子源的应用更加广泛。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics

CiteScore

7.10

自引率

4.20%

发文量

401

审稿时长

21 weeks

期刊介绍： High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.