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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment >Parametric scalings of laser driven protons using a high repetition rate tape drive target system
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Parametric scalings of laser driven protons using a high repetition rate tape drive target system

机译：使用高重复率磁带驱动目标系统对激光驱动质子进行参数缩放

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摘要

A series of experiments were carried out using the 200 TW laser facility at LLP, SJTU aiming to explore parametric scalings of laser driven protons employing a low cost and stable high repetition rate tape drive target system. For numerous laser shots at a repetition rate of similar to 0.2 Hz with maximum laser intensity up to similar to 5 x 10(19) W/cm(2) maximum energy of protons were measured by varying laser energy, focal spot size and laser pulse duration. The data suggests that the maximum energy of protons scales as I-similar to 0.6 while changing the incident laser energy. Scaling trends are in good agreement with the previously reported experimental results and theoretical models. This study may provide a platform to investigate the characteristics of proton beams, such as source size and angular dispersion at a repetition rate required for many potential applications.
机译：使用SJTU的LLP的200 TW激光设备进行了一系列实验，旨在探索采用低成本和稳定的高重复率磁带驱动目标系统的激光驱动质子的参数缩放。对于许多重复频率接近0.2 Hz的激光发射，最大激光强度高达5 x 10（19）W / cm（2），通过改变激光能量，焦斑大小和激光脉冲来测量质子的最大能量持续时间。数据表明，在改变入射激光能量时，质子的最大能量缩放为I-类似于0.6。缩放趋势与先前报道的实验结果和理论模型非常吻合。这项研究可以提供一个平台来研究质子束的特性，例如许多潜在应用所需的重复率下的源尺寸和角度色散。

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