Excitation of Large Amplitude Electron Plasma Wave by Means of Wakefield with High Power Microwave

高功率微波韦克场激发大振幅电子等离子体波

• 批准号: 04452308
• 负责人: NISHIDA Yasushi
• 金额: $ 0.9万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452308/
• 关键词: Microwave-Plasma Interaction; Plasma based Accelerator; Ion Wave Wakefield; Beam-Plasma Interaction; Temporal Plasma Wave Echoes; Mach-cone Shockwave; VpxB Linear Accelerator; VpxB TWT Amp.; プラズマ航跡場; 電子プラズマ波; プラズマ加速器; 遅波回路; Vp×B加速; イオン波; 2-プ; Microwave-Plasma Interaction; Plasma based Accelerator; Ion Wave Wakefield; Beam-Plasma Interaction; Temporal Plasma Wave Echoes; Mach-cone Shockwave; VpxB Linear Accelerator; VpxB TWT Amp.; プラズマ航跡場; 電子プラズマ波; プラズマ加速器; 遅波回路; Vp×B加速; イオン波; 2-プ

The objectives of the present investigations are :(1)Excitation of large amplitude electron plasma wave by means of wakefield method with high power electromagnetic waves, (2)Nonlinear, strong interaction between waves and particles in plasma, and (3)Clarification of the electron acceleration mechanism in its method.For the tasks mentioned above, we have done investigations to get results both of, (1) new phenomena including Mach-cone structure formed by high energy bunch of electrons and ion wave wakefield observed near the resonance absorption layr of microwave-nonuniform plasma interaction. Here, high energy electron bunch is produced by an electron plasma wave wakefield. Temporal plasma wave echoes are also found for the first time after the theoretical prediction of more than 25 years ago. (2) Ion wave wakefield excitation and ion acceleration have been investigated precisely to clarify the interaction mechanism. (3) Strong interaction between high energy electron bunch (- 20 MeV) and plasmas has been investigated precisely for the fundamental understanding of plasma based high energy particle accelerators. (4) Development of sheet shaped, new plasma sources for the plasma process or plasma based particle accelerators has been tried. (5) the development of an electron linear accelerator based on the VpxB principle with TE-mode electromagnetic wave has been carried out successfully, and (6) the development of VpxB traveling wave amplifier, which uses inverse process of VpxB acceleration, is under way.

本研究的目的是：（1）通过具有高功率电磁波的韦克菲尔德方法激发大幅度电子等离子体波，（（2）非线性，血浆中的波和颗粒之间的强烈相互作用，（3）在其方法中澄清电子加速机制的能量。一束电子和离子波Wakefield在微波非分离等离子体相互作用的共振吸收层附近观察到。在这里，高能电子束由电子等离子体波Wakefield产生。在25年前的理论预测之后，也首次发现了时间等离子体波回声。 （2）已精确研究了离子波Wakefield激发和离子加速度以阐明相互作用机制。 （3）精确研究了高能电子束（-20 MeV）和等离子体之间的强烈相互作用，目的是对基于等离子体的高能颗粒加速器的基本了解。 （4）已经尝试了用于等离子体过程或等离子体基粒子加速器的板状的新等离子体源。 （5）基于TE模式电磁波的VPXB原理的电子线性加速器的开发已成功地进行，（6）使用VPXB加速度的反向过程的VPXB行驶波放大器的发展。