Isotope effects of the edge transport barrier of JET-ILW H-modes

JET-ILW H 模式边缘传输势垒的同位素效应

• 批准号: 1651735
• 金额: --
• 依托单位: University of York
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1651735
• 关键词: Isotope; effects; edge; transport; barrier

Future fusion power plants for clean energy production will need to operate with a mixture of different hydrogen isotopes, namely deuterium and tritium (D-T). The ITER experimental tokamak, currently being built in France, is an international fusion facility which will demonstrate burning plasma operation with D-T mixture. It is crucial to predict and optimise the fusion performance of ITER which requires deeper understanding of the effect of isotope mass on plasma confinement, transport and stability.The JET tokamak in the UK is in a phase of D-T experimental campaigns with both full tritium and deuterium-tritium operation. Together with the ITER-like combination of plasma facing components this phase addresses key aspects of operation with different hydrogen isotopes and will demonstrate ITER regimes in D-T. The project focuses on the analysis of JET-ILW edge plasma data in support of predictive models for the edge transport barrier. JET is in an excellent position for creating a high quality confinement and profile database suitable for studying core and edge contributions to the global confinement, to study the isotope scaling of the edge structure, to investigate the inter-ELM transport and the micro turbulence limiting the edge gradients.

未来用于清洁能源生产的核聚变发电厂将需要使用不同氢同位素的混合物，即氘和氚（D-T）。目前正在法国建造的ITER实验托卡马克是一个国际聚变设施，将展示用D-T混合物燃烧等离子体的操作。预测和优化ITER的聚变性能至关重要，这需要更深入地了解同位素质量对等离子体约束、输运和稳定性的影响。英国的JET托卡马克正处于全氚和氘-氚运行的D-T实验运动阶段。与类似ITER的等离子体面组件组合一起，该阶段解决了不同氢同位素操作的关键方面，并将在D-T中演示ITER制度。该项目侧重于分析JET-ILW边缘等离子体数据，以支持边缘传输屏障的预测模型。JET具有创建高质量约束和剖面数据库的优势，适用于研究核心和边缘对全局约束的贡献，研究边缘结构的同位素标度，研究elm间输运和限制边缘梯度的微湍流。

项目成果

Inter-ELM evolution of the edge current density in JET-ILW type I ELMy H-mode plasmas

JET-ILW I 型 ELMy H 模式等离子体中边缘电流密度的 ELM 间演变

• DOI: 10.1088/1361-6587/aac7a9
• 发表时间: 2018
• 期刊: Plasma Physics and Controlled Fusion
• 影响因子: 2.2
• 作者: Horvath L