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方案，这将提供大量的和重要的进展，我们的理解的物理高能电子传输和冲击爆发的均匀性在稠密的等离子体过程中的惯性约束聚变（ICF）计划的成功至关重要。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，并将其应用于以前所未有的微米级分辨率诊断电子传输和冲击均匀性突破。这提供了显着的优势，超过现有的诊断技术，当与现有的技术相结合，将大大增加我们的关键物理过程的ICF的理解。ICF持有的承诺，实现在实验室条件下，更多的能量产生的聚变反应比入射到一个内爆聚变弹丸，从而创建一个能源（惯性聚变能）。ICF快速点火方法的一个关键问题是从短的“点火”激光脉冲中有效地传递能量，通常是通过高能电子的加速和传输。因此，对激光加速相对论电子的能量传输和加热的理解对于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物理问题。快电子在致密物质中的输运对于高功率激光驱动离子源的发展也很重要。这项研究计划是一项综合性的实验研究计划，以理论模型为基础，旨在解决电子输运和冲击波传播的问题，这些问题对激光驱动粒子和辐射源的发展至关重要，特别是ICF。卢瑟福阿普尔顿实验室。

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.