Studies of the plasma flow velocity in the edge and scrape off layer of tokamaks

托卡马克边缘和刮除层等离子体流速的研究

• 批准号: 8579-2008
• 负责人: Boucher, Claude
• 金额: $ 1.47万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=420650
• 关键词: Studies; plasma; flow; velocity; edge

The world effort in fusion research has initiated a major step forward in the next large scale experiment called ITER (International Thermonuclear Experimental Reactor), a burning plasma experiment dedicated to demonstrate de feasibility of thermonuclear fusion as a power source. Even if such a large scale project is underway, fundamental physics issues remain and can be addressed in existing tokamaks, the magnetic geometry of ITER. The objective of the present research program is to study the flow of the main species of the plasma in the scrape off layer (SOL) of tokamaks. It is speculated that such plasma flows may be responsible for the spread of tritium inside the reactor. Therefore, from a technical standpoint, if these flows are not better understood and controlled, activation resulting from the trapping of tritium may shorten the useful life of the fusion reactor. From a more fundamental physics standpoint, these flows are now being invoked as being part of the underlying mechanisms in the confinement regimes in tokamaks. Consequently, a better understanding of these flows leading to their control will bring about a more efficient control of the thermonuclear furnace.

全球融合研究的努力在下一个称为ITER（国际热核实验反应堆）的大规模实验中迈出了重大一步，这是一个燃烧的等离子体实验，致力于证明热核融合作为电源的可行性。即使正在进行这样的大规模项目，基本物理问题仍然存在，并且可以在现有的Tokamaks（ITER的磁性几何形状）中解决。本研究计划的目的是研究Tokamaks刮擦层（SOL）中血浆主要物种的流动。据推测，这种等离子体流可能导致反应器内trip的扩散。因此，从技术的角度来看，如果无法更好地理解和控制这些流，则因陷阱而引起的激活可能会缩短融合反应器的使用寿命。从更基本的物理学角度来看，这些流现在被称为Tokamaks禁闭制度的基本机制的一部分。因此，更好地理解这些导致其控制的流动将使对热核炉的更有效控制。