Basic Researches on Development of Plasma Accelerator

等离子体加速器研制的基础研究

基本信息

批准号：
59420045
负责人：
NISHIDA Yasushi
金额：
$ 8.32万
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 (A)
财政年份：
1984
资助国家：
日本
起止时间：
1984 至 1985
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-59420045/
关键词：
Plasma accelerator resonance absortion microwave VpxB acceleration 高エネルギー電子

项目摘要

In a weakly magnetized, inhomogeneous plasma ( <omega_0> <[]-> <omega_p> >> <omega_c> : <omega_o> is a frequency of an incident electromagnetic wave, <omega_p> the electron plasma frequency, and <omega_c> the electron cyclotron frequency), a large amplitude electrostatic wave propagating across the static magnetic field B accelerates electrons in the direction (-e)VpxB (VpxB acceleration mechanism). In the present research, it is aimed to clarify whether the VpxB acceleration mechanism is spplicable or not to the high energy particle accelrator scheme in order to accelerate electrons or ions. For those purposes, (1) we have performed the experiments on the microwave plasma interaction in a weakly magnetized inhomogeneous plasma, and (2) the basic ideas to realize a particle accelerator are proposed.When we applied the medium power microwave with frequency of 2.86 GHz and a maximum power 11 KW, hot electrons with maximum energy up to about 1 KeV have been observed through the process of VpxB acceleration mechanism. In addition, electrons with several 100 eV, which are also ejected in the direction perpendicular to both a wave propagation direction and the static magnetic field, are observed near the resonance absorption layer. This process is also expected to be the VpxB acceleration due to the wave trapped in the density cavity.Design studies are performed for realizing a high energy particle accelerator with the use of the slow wave structure and the concept of the VpxB acceleration scheme. It is clarified that in the relativistic case the present accelerator scheme is more efficient than the conventional linear accelerator.

在弱磁性的，不均匀的血浆中（<Omega_0> <[] - > <omega_p> >> <Omega_c__c>：<OMEGA_O_O>是事件电磁波的频率b在（-e）VPXB（VPXB加速机制）方向上加速电子。在本研究中，旨在阐明VPXB加速度机制是否可以针对高能粒子加速器方案，以加速电子或离子。出于这些目的，（1）我们已经在微波血浆相互作用上进行了实验，以弱磁性不均匀等离子体进行了实验，（2）（2）提出了实现粒子加速器的基本思想。当我们将中型微波炉应用于2.86 GHz的频率2.86 GHz和最大电源，并与最大的电源相关，以最大的电源为单位，以最大的速度与1 kW相关，以实现大约1 kW的过程。机制。另外，在垂直于波传播方向和静态磁场的方向上弹出了几种100 eV的电子。由于使用慢波结构和VPXB加速度方案的概念，进行了设计研究，预计该过程也将是由于密度腔中被困在密度腔中的波加速度的VPXB加速度。可以澄清的是，在相对论的情况下，当前的加速器方案比常规线性加速器更有效。