阿贡瓦克菲尔德加速器 "介电木马 "实验的驱动列车

Q3 Physics and Astronomy Instruments Pub Date : 2024-04-10 DOI:10.3390/instruments8020028
G. Andonian, Nathan Burger, Nathan Cook, S. Doran, Tara Hodgetts, Seong-II Kim, G. Ha, Wanming Liu, W. Lynn, N. Majernik, John Power, Alexey Pronikov, James Rosenzweig, E. Wisniewski
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引用次数: 0

摘要

最近展示的等离子体光电阴极概念,即在等离子体汪场加速泡内通过激光电离初始化高亮度束,被非正式地称为特洛伊木马汪场加速。与此类似,电介质特洛伊木马概念包含一个电介质衬里波导,用于支持带电粒子束驱动的加速模式,并利用激光启动波导内中性气体的电离来产生见证束。介质特洛伊木马概念的优点之一是,由于在较低频率下运行,对计时精度的要求降低了。在本文中,我们介绍了在阿贡汪场加速器设施中进行的用于圆柱形介质波导中汪场共振激发的四束驱动系的产生和特性分析的实验结果。这些结果为在电介质汪场加速结构中演示等离子体光电阴极方案奠定了基础。此外,还提出了通过改进光束传输来提高捕获效率的修改建议。
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Drive Bunch Train for the Dielectric Trojan Horse Experiment at the Argonne Wakefield Accelerator
The recently demonstrated concept of the plasma photocathode, whereby a high-brightness bunch is initialized by laser ionization within a plasma wakefield acceleration bubble, is informally referred to as Trojan Horse wakefield acceleration. In a similar vein, the dielectric Trojan Horse concept incorporates a dielectric-lined waveguide to support a charged particle beam-driven accelerating mode and uses laser initiated ionization of neutral gas within the waveguide to generate a witness beam. One of the advantages of the dielectric Trojan Horse concept is the reduced requirements in terms of timing precision due to operation at a lower frequency. In this paper, we present experimental results on the generation and characterization of a four-bunch drive train for resonant excitation of wakefields in a cylindrical dielectric waveguide conducted at the Argonne Wakefield Accelerator facility. The results lay the foundation for the demonstration of a plasma photocathode scheme within a dielectric wakefield accelerating structure. Modifications to improve capture efficiency with improved beam transmission are suggested as well.
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来源期刊
Instruments
Instruments Physics and Astronomy-Instrumentation
CiteScore
2.60
自引率
0.00%
发文量
70
审稿时长
11 weeks
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