Key physics for Inertial Confinement Fusion diagnosed by ion emission

离子发射诊断惯性约束聚变的关键物理

• 批准号: EP/E048668/1
• 负责人: Paul McKenna
• 金额: $ 83.82万
• 依托单位: University of Strathclyde
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE048668%2F1
• 关键词: Key; physics; Inertial; Confinement; Fusion

We propose a new programme of research which will provide substantial and important advances in our understanding of the physics of energetic electron transport and shock breakout uniformity in dense plasma - processes critical to the success of Inertial Confinement Fusion (ICF) schemes. We will do this by developing an entirely new class of diagnostic, based on ion emission, and apply this to diagnose electron transport and shock uniformity breakout with unprecedented micron-scale resolution. This offers significant advantages over existing diagnostic techniques and when combined with existing techniques will greatly increase our understanding of key physical processes for ICF.ICF holds the promise of achieving conditions in the laboratory where more energy is produced in fusion reactions than is incident on an imploding fusion pellet, thus creating an energy source (Inertial Fusion Energy). A critical issue for the fast ignition approach to ICF is the efficient delivery of energy from a short 'ignition' laser pulse, usually by acceleration and transport of energetic electrons. An understanding of energy transport and heating by laser-accelerated relativistic electrons is therefore of fundamental importance to the fast ignitor concept and yet there are many outstanding physics questions relating to this. The transport of fast electrons through dense matter is also important for the development of high power laser driven ion sources. The research proposed here involves a comprehensive programme of experimental investigations, underpinned by theoretical modelling, designed to address questions on electron transport and shock propagation of fundamental importance to the development of laser driven particle and radiation sources in general and ICF in particular.The programme will be carried out using state-of-the-art high intensity laser systems at the Central Laser Facility, Rutherford Appleton Laboratory.

我们提出了一个新的研究计划，这将为我们对致密等离子体中高能电子传输和冲击爆发均匀性的物理理解提供实质性和重要的进展-这些过程对惯性约束聚变（ICF）方案的成功至关重要。我们将通过开发一种全新的基于离子发射的诊断方法来实现这一目标，并以前所未有的微米级分辨率将其应用于诊断电子传递和冲击均匀性破裂。这比现有的诊断技术具有显著的优势，当与现有技术相结合时，将大大增加我们对ICF关键物理过程的理解。ICF有望在实验室中达到这样的条件：聚变反应产生的能量比内爆聚变球团产生的能量更多，从而产生一种能量源（惯性聚变能）。ICF快速点火方法的一个关键问题是从短“点火”激光脉冲有效地传递能量，通常是通过加速和高能电子的输运。因此，对激光加速的相对论电子的能量传输和加热的理解对快速点火器的概念具有根本的重要性，但仍有许多与此相关的突出的物理问题。快速电子通过致密物质的输运对于高功率激光驱动离子源的发展也很重要。这里提出的研究包括一个全面的实验研究计划，以理论建模为基础，旨在解决电子传输和冲击传播问题，这些问题对激光驱动粒子和辐射源的发展具有重要意义，特别是ICF。该计划将在卢瑟福阿普尔顿实验室的中央激光设施使用最先进的高强度激光系统进行。

项目成果

Laser-driven proton beams : mechanisms for spectral control and efficiency enhancement

激光驱动质子束：光谱控制和效率增强的机制

• 发表时间: 2012
• 作者: Brenner Ceri M.

Energetic beams of negative and neutral hydrogen from intense laser plasma interaction

• DOI: 10.1063/1.4850456
• 发表时间: 2013-12-16
• 期刊: APPLIED PHYSICS LETTERS
• 影响因子: 4
• 作者: Abicht, F.;Prasad, R.;Ter-Avetisyan, S.
• 通讯作者: Ter-Avetisyan, S.