Plasma Physics HEC Consortia

等离子体物理 HEC 联盟

• 批准号: EP/X035336/1
• 负责人: David Dickinson
• 金额: $ 36.26万
• 依托单位: University of York
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX035336%2F1
• 关键词: Plasma; Physics; HEC; Consortia

Plasma physics is the study of the properties of ionised gases. The processes, which need to be investigated, cover kinetic theory of matter far from its equilibrium state, fluid dynamics of magnetised and conductive plasmas and the interaction of these across a huge range of time and length scales, often in complex geometries. Such problems are rarely tractable analytically and thus much of plasma physics relies on High End Computing (HEC) to perform massive simulations. This HEC Consortium will cover all aspects of computational hot plasma physics. This includes modelling for magnetic confinement fusion (MCF) devices to optimize reactor performance, simulations to optimize compact laser-particle accelerator sources, novel approaches to high-intensity laser-plasma experiments and laser-driven fusion. In all these areas HEC resources are needed for simulations which are essential to either guide experiments, inform research programmes (including providing reliable predictive capability for the performance of future plasma facilities) or to interpret the complex diagnostic sets from coupled multi-scale, non-linear and sometimes relativistic processes.To help maintain the UK's leading role in fusion reactor design and basic plasma physics the HEC Consortium requires a block allocation of UK National level computing resource, so called Tier-1 HEC. This will ease the access to such facilities and allow the UK to collectively plan computational programmes, which will require many years to complete, in the certainty that the computing resources will be available. Over the four-year duration of this HEC Consortium computer architectures may change and optimising codes for current and future machines is therefore essential. In addition, new physics packages must be developed and implemented to keep the UK at the cutting edge of this research. The Consortium therefore also requires funding for software development to exploit the computing resources and keep codes world-leading.Applications of the scientific research enabled by the combination of Tier-1 HEC and software support are diverse. Much of the research of the Consortium will be directed at improving reactor designs for fusion power. This is for both MCF and inertial confinement fusion energy (ICF). For the former the HEC will concentrate on understanding how energy is transported from the hot plasma core and managing the extreme heat loads incident on surrounding walls. Recent results from the National Ignition Facility (NIF) demonstrating a burning fusion plasma have energised ICF research internationally. The UK community has used HEC to take a leading role in this, producing novel three dimensional simulations of NIF implosions. This highlighted the deleterious impact of the Rayleigh Taylor instability on the first campaigns on NIF and helped to motivate the new designs which ultimately led to ignition. Going forwards, HEC will be a critical enabler of simulations to guide ICF towards the high gain necessary for net energy generation, including testing novel targets and alternative driver schemes. Laser-driven plasma accelerators and radiation sources have many forms, ranging from laser-irradiated solids to compact capillary discharges; with applications including fast-ignition based laser fusion, ion sources for radiotherapy and compact ultrafast x-ray sources for penetrative probing.

血浆物理学是对离子气体特性的研究。需要研究的过程涵盖了物质的动力学理论，远离其平衡状态，磁化和导电等离子体的流体动力学以及它们在大量时间和长度尺度上的相互作用，通常是在复杂的几何形状中。此类问题很少在分析上是可以分析的，因此大部分血浆物理学依赖于高端计算（HEC）来执行大规模的模拟。该HEC财团将涵盖计算热等离子体物理学的各个方面。这包括建模磁性限制融合（MCF）设备，以优化反应堆性能，模拟以优化紧凑的激光粒子加速器源，用于高强度激光 - 等离子实验的新方法和激光驱动的融合。在所有这些领域，需要HEC资源来进行模拟，这对于指导实验，为研究计划提供信息（包括提供可靠的预测能力，以使未来血浆设施的性能提供可靠的预测能力）或解释复杂的诊断集合，从而从耦合的多尺度，非线性，有时是相对论过程中均可维持英国在全国性的融合层中的领先作用。计算资源，所谓的Tier-1 HEC。这将减轻对此类设施的访问权限，并允许英国共同计划计算计划，这将需要多年才能完成，并确定可以提供计算资源。因此，在此HEC财团的四年期间，计算机架构可能会改变并优化当前和未来机器的代码。此外，必须开发和实施新的物理包，以使英国处于这项研究的最前沿。因此，该财团还需要用于软件开发的资金来利用计算资源并保持代码世界领先。通过组合Tier-1 HEC和软件支持的结合，对科学研究的应用是多种多样的。财团的大部分研究将致力于改善反应堆设计以提高融合功率。这是MCF和惯性限制融合能（ICF）。对于前者来说，HEC将集中精力了解如何从热等离子体核心运输能量并管理出现在周围壁上的极端热负荷。国家点火设施（NIF）的最新结果表明，燃烧的融合血浆在国际上为ICF研究提供了充满活力的研究。英国社区已经使用HEC在这方面发挥了领导作用，从而产生了NIF内爆的新型三维模拟。这强调了雷利·泰勒（Rayleigh Taylor）不稳定对NIF的首次运动的有害影响，并帮助激发了最终导致点火的新设计。展望未来，HEC将是模拟的关键推动力，可以指导ICF净能量产生净能量所需的高收益，包括测试新型目标和替代驱动程序方案。激光驱动的等离子体加速器和辐射源具有多种形式，从激光辐射的固体到紧凑的毛细管放电；通过应用包括基于快速点击的激光融合，放射疗法的离子源和紧凑的超快X射线源用于穿透性探测。

项目成果

Measuring the principal Hugoniot of inertial-confinement-fusion-relevant TMPTA plastic foams

测量与惯性约束聚变相关的 TMPTA 塑料泡沫的主 Hugoniot

• DOI: 10.15120/gsi-2023-00539
• 发表时间: 2023
• 作者: Paddock R

Optimization and control of synchrotron emission in ultraintense laser-solid interactions using machine learning

使用机器学习优化和控制超强激光-固体相互作用中的同步加速器发射

• DOI: 10.1017/hpl.2023.11
• 发表时间: 2023
• 期刊: High Power Laser Science and Engineering
• 影响因子: 4.8
• 作者: Goodman J

Laser harmonic generation with independent control of frequency and orbital angular momentum

频率和轨道角动量独立控制的激光谐波产生

• DOI: 10.21203/rs.3.rs-3458883/v1
• 发表时间: 2023
• 作者: Trines R

Measuring spatio-temporal couplings using modal spatio-spectral wavefront retrieval.

使用模态时空波前检索测量时空耦合。

• DOI: 10.1364/oe.483801
• 发表时间: 2023
• 期刊: Optics express
• 影响因子: 3.8
• 作者: Weisse N

Energy gain of wetted-foam implosions with auxiliary heating for inertial fusion studies

• DOI: 10.1088/1361-6587/ad15ee
• 发表时间: 2024-02-01
• 期刊: PLASMA PHYSICS AND CONTROLLED FUSION
• 影响因子: 2.2
• 作者: Paddock，R. W.;Li，T. S.;Norreys，P. A.
• 通讯作者: Norreys，P. A.