Experiments and interpretive modeling to identify the physics controlling material migration in the boundary of DIII-D, JET and EAST fusion energy tokamaks

实验和解释模型，以确定控制 DIII-D、JET 和 EAST 聚变能托卡马克边界中材料迁移的物理原理

• 批准号: 8853-2011
• 负责人: Stangeby, Peter
• 金额: $ 2.7万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=544564
• 关键词: Experiments; interpretive; modeling; identify; physics

The aim of fusion energy research is to create a 'star in a bottle'. Magnetic fusion research has advanced to the point where the 'bottle' is now the problem. The wall armour is strongly eroded by the hot plasma. Some eroded material deposits back out of the plasma at the original location, causing no problem. However, much of the material migrates some distance within the plasma before depositing out again. The latter creates serious problems: (i) loss of armour lifetime, (ii) pile-up of deposits which can stop reactor operation, (iii) loss of tritium fuel due to co-deposition trapping, (iv) dust creation with safety (chemical explosion) implications, etc.

聚变能研究的目标是创造“瓶中的星星”。磁聚变研究已经发展到了“瓶子”现在是问题的地步。壁装甲被热等离子体强烈侵蚀。一些被侵蚀的材料沉积在原始位置的等离子体中，不会造成任何问题。然而，大部分材料在再次沉积之前在等离子体内迁移一定距离。后者造成了严重的问题：（一）装甲寿命的损失，（二）沉积物的堆积可能使反应堆停止运行，（三）由于共沉积物的捕获而损失氚燃料，（四）产生粉尘，对安全（化学爆炸）有影响，等等。