Wakefield Acceleration in Relativistic Shock Waves

相对论冲击波中的韦克菲尔德加速

• 批准号: 19340171
• 负责人: HOSHINO Masahiro
• 金额: $ 10.15万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19340171/
• 关键词: 宇宙・天体プラズマ; 衝撃波; 粒子加速; 相対論プラズマ; 宇宙線; 相対プラズマ; 航跡場加速; 無衝突衝撃波; 粒子シミュレーション; 波乗り加速

We studied wakefield acceleration under large amplitude waves generated in a relativistic shock wave by using a particle-in-cell simulation. It is known that the large-amplitude precursor wave generated by synchrotron maser instability at the shock front can propagate toward the upstream region. We investigated the interaction between the precursor wave and plasmas through ponderomotive force. The wakefield acceleration is known to be a new generation scheme for particle accelerator in laser-laboratory plasma, while in the astroplasma settings, the nature of the precursor wave become more or less turbulent, and we need to understand the wakefield acceleration under incoherent fields. We found that the wakefield acceleration under the incoherent shock upstream waves can be regarded as a high efficient acceleration mechanism by a large-scale, particle-in-cell simulation.

利用粒子模拟方法研究了相对论激波中产生的大振幅波作用下的韦克菲尔德场加速。众所周知，同步脉泽不稳定性在冲击波阵面产生的大振幅前兆波可以向上游区域传播。通过有质动力研究了前驱波与等离子体的相互作用。韦克菲尔德加速被认为是激光等离子体中粒子加速器的新一代方案，而在天体等离子体环境中，前驱波的性质变得或多或少的动荡，我们需要了解非相干场下的韦克菲尔德加速。通过大尺度粒子模拟发现，非相干激波上游波作用下的韦克菲尔德加速可以看作是一种高效的加速机制。

项目成果

Electron Shock Surfing Acceleration in Multidimensions : Two-Dimensiona Particle-In-Cell Simulation of Collisionless Perpendicular Shock

多维电子冲击冲浪加速:无碰撞垂直冲击的二维粒内模拟

• 发表时间: 2009
• 期刊: Astrophy.J. 690
• 作者: T. Amano;M. Hoshino
• 通讯作者: M. Hoshino

Radiation-dominated relativistic current sheet

辐射主导的相对论电流片

• 发表时间: 2009
• 期刊: Physical Review Letters 103
• 作者: C.H.Jaroschek;M.Hoshino
• 通讯作者: M.Hoshino

Particle Acceleration in Relativistic Astrophysical Shocks,

相对论天体物理冲击中的粒子加速，

• 发表时间: 2008
• 作者: 平井真理子;星野真弘;橋本和典;向井利典;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino
• 通讯作者: M. Hoshino

宇宙プラズマの粒子シミュレーション (5.2章)、計算力学シミュレーションハンドブック

空间等离子体的粒子模拟（第5.2章），计算力学模拟手册

• 发表时间: 2009
• 作者: 平井真理子;星野真弘;橋本和典;向井利典;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;M. Hoshino;星野真弘
• 通讯作者: 星野真弘

Relativistic PIC Simulation on Shock Waves and Magnetic Reconnection

冲击波和磁重联的相对论 PIC 仿真

• 发表时间: 2009
• 作者: 平井真理子;星野真弘;橋本和典;向井利典;齋藤 晴彦;M. Kanzaki (V.V. Brazhkin);星野真弘
• 通讯作者: 星野真弘