Shocks and transition to turbulence in magnetized high density plasmas

磁化高密度等离子体中的冲击和湍流转变

• 批准号: 2277273
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2277273
• 关键词: Shocks; transition; turbulence; magnetized; density

Shock waves are important feature of many magnetised plasmas in astrophysics, in space plasmas and in laboratory plasmas relevant to Inertial Confinement Fusion research. The PhD project will be focused on the studies of shock waves formed in the interaction of magnetised supersonic plasma flows produced at the 1.4MA MAGPIE pulsed power facility with various obstacles. Experiments will investigate the development of instabilities in magnetised shocks, in conditions scalable to astrophysical shocks. The project will also involve studies of the development of turbulence in high density plasmas formed in collisions of counter-streaming plasma flows and in rotating plasmas. Work will involve modification of the already existing experimental set-ups, designing appropriate targets allowing quantitative characterisation of the shocks, and designing and testing of new experimental configurations. The project will also involve the development and implementation of advanced plasma diagnostics, such as temporally and spatially resolved Thomson scattering, interferometry, optical and x-ray imaging spectroscopy and X-ray radiography.

激波是天体物理、空间等离子体和与惯性约束聚变研究相关的实验室等离子体中许多磁化等离子体的重要特征。博士项目将集中在研究在1.4MA MAGPIE脉冲功率设施与各种障碍物产生的磁化超音速等离子体流相互作用中形成的冲击波。实验将研究磁化冲击中不稳定性的发展，在可扩展到天体物理冲击的条件下。该项目还将研究逆流等离子体流碰撞和旋转等离子体中形成的高密度等离子体中湍流的发展。工作将涉及修改现有的实验装置，设计适当的目标，使冲击的定量特征，并设计和测试新的实验配置。该项目还将涉及开发和实施先进的等离子体诊断技术，如时间和空间分辨汤姆逊散射、干涉测量、光学和X射线成像光谱学以及X射线照相术。