Laser Plasma Electron Acceleration with kHz Lasers

使用 kHz 激光器进行激光等离子体电子加速

基本信息

项目摘要

Laser-plasma acceleration has emerged as a promising technique for producing electron beams in a compact manner. In the majority of cases, 100 TeraWatt to PetaWatt scale laser systems, with rather low repetition rates (Hz or less), are used to drive such accelerators and to produce electron beams up to the GeV scale. However, many applications require higher repetition rates up to the kHz level and beyond. Very recently, first proof-of-principle experiments have demonstrated laser-plasma acceleration of few-MeV electrons at kHz repetition rates. These first results are encouraging but the observed beams are not useful for applications yet as they lack reliability and stability. The current project, HighRep, aims to bring kHz laser-plasma acceleration to a higher level of maturity. To do so, we will develop innovative targets to better control the injection into the accelerating plasma waves, which should, in turn, increase the stability, reliability and robustness of the electron source. The target developments will follow two main research paths: (i) micro-nozzles for producing controlled tailored gas-jet distributions at the micrometer level, permitting for instance to trigger electron injection in density transitions, (ii) cluster targets with micrometer positioning of single clusters, for controlling injection and increasing the electron energy to 10 MeV and beyond. Laser-plasma accelerators have the potential of producing femtosecond X-ray bursts via betatron radiation of the electrons in the plasma wakefield. Within HighRep, we will carry out first measurements of the emitted X-UV light at kHz repetition rate. The project is crucially based on the complementarity of the French and German groups, both in terms of expertise and equipment. In particular, the collaboration between the two groups will permit to perform experiments on two different 1 TW state-of-the-art laser systems that have very different parameters. This will allow us to study kHz laser-plasma acceleration in different regimes and to estimate which laser technology is most promising.
激光等离子体加速技术是一种很有前途的紧凑型电子束产生技术。在大多数情况下,100太瓦至拍瓦规模的激光系统,具有相当低的重复率(Hz或更低),用于驱动此类加速器并产生高达GeV规模的电子束。然而,许多应用需要更高的重复率,高达kHz水平或更高。最近,第一个原理验证实验已经证明了激光等离子体在kHz重复率下加速几MeV电子。这些初步结果是令人鼓舞的,但观察到的光束是没有用的应用程序,但因为他们缺乏可靠性和稳定性。当前的项目HighRep旨在使kHz激光等离子体加速达到更高的成熟水平。为此,我们将开发创新目标,以更好地控制注入加速等离子体波,这反过来又会增加电子源的稳定性,可靠性和鲁棒性。靶的开发将遵循两条主要的研究路径:(一)微型喷嘴,用于在微米级产生受控的定制气体射流分布,例如允许在密度转变中触发电子注入,(二)具有单个团簇的微米定位的团簇靶,用于控制注入和将电子能量增加到10 MeV及以上。激光等离子体加速器具有通过等离子体韦克菲尔德中电子的电子感应加速器辐射产生飞秒X射线暴的潜力。在HighRep中,我们将以kHz重复率对发射的X-UV光进行首次测量。该项目的关键在于法国和德国集团在专业知识和设备方面的互补性。特别是,两个小组之间的合作将允许在两个不同的1 TW最先进的激光系统上进行实验,这些系统具有非常不同的参数。这将使我们能够研究kHz的激光等离子体加速在不同的制度,并估计激光技术是最有前途的。

项目成果

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Professor Dr. Markus Büscher其他文献

Professor Dr. Markus Büscher的其他文献

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{{ truncateString('Professor Dr. Markus Büscher', 18)}}的其他基金

DFG-RSF: Towards a Molecular Source for Polarized Deuterium Fuel in NuclearFusion Research and other applications
DFG-RSF:在核聚变研究和其他应用中寻找极化氘燃料的分子源
  • 批准号:
    309228869
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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SBIR TOPIC 415: Design and Construction of a Novel Electron Brachytherapy Source Driven by a Laser Plasma Accelerator
SBIR 主题 415:由激光等离子体加速器驱动的新型电子近距离治疗源的设计和构造
  • 批准号:
    10496713
  • 财政年份:
    2021
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    --
  • 项目类别:
Collaborative Research: Preformed Laser-driven Plasma Waveguides for Multi-GeV Laser-Plasma Electron Acceleration
合作研究:用于多GeV激光等离子体电子加速的预制激光驱动等离子体波导
  • 批准号:
    1734319
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    2017
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    --
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    Standard Grant
Collaborative Research: Preformed Laser-driven Plasma Waveguides for Multi-GeV Laser-Plasma Electron Acceleration
合作研究:用于多GeV激光等离子体电子加速的预制激光驱动等离子体波导
  • 批准号:
    1734281
  • 财政年份:
    2017
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    Standard Grant
Electron beam injection using a laser plasma injector (summary to follow)
使用激光等离子体注入器进行电子束注入(总结如下)
  • 批准号:
    1787274
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    2016
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    Studentship
From Phase Space Manipulation to First Light from a Laser Plasma Accelerator Powered Free Electron Laser
从相空间操纵到激光等离子体加速器驱动的自由电子激光器的第一束光
  • 批准号:
    1632796
  • 财政年份:
    2016
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Demonstration of laser-driven ultrafast and intense electron source with solid-plasma hybrid cathode
具有固体等离子体混合阴极的激光驱动超快强电子源演示
  • 批准号:
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Ultra-Low Emittance Electron Beams from Laser-Plasma Photo-Cathodes
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  • 批准号:
    1535700
  • 财政年份:
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Measurement of electron energy distribution function in liquid plasma with laser Thomson scattering
激光汤姆逊散射测量液体等离子体中的电子能量分布函数
  • 批准号:
    25600121
  • 财政年份:
    2013
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    --
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Surface plasma electron acceleration by intense-laser induced pulse surface wave traveling on a metal wire
强激光感应脉冲表面波在金属线上传播的表面等离子体电子加速
  • 批准号:
    25600138
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    2013
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Ultrafast observation of relativistic laser-plasma interactions by a femtosecond electron beam
通过飞秒电子束超快观测相对论性激光-等离子体相互作用
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    2012
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