Development of commissioning method for fusion power plant without initial tritium supply

由于世界市场上的氚库存有限，如何确保初始氚库存是DEMO的关键问题之一。因此，为了确保演示所需的初始氚库存，有必要采取某种对策。综合解决方案之一是没有初始氚库存的试运行方案，在该方案中，利用由NBI束直接反应辅助的DD聚变反应产生和孕育的氚用于聚变发电厂的调试。这项研究表明，在没有Demo-CREST初始氚库存的情况下，可能会出现等离子体试运行的情况。

One of the critical issues for DEMO is how to ensure the initial tritium inventory, because of the limited tritium stock in the world market. Hence, in order to ensure the initial tritium inventory for DEMO, some kind of countermeasures is necessary. One of the comprehensive solutions is the commissioning scenario without the initial tritium inventory, in which the tritium produced and bred by the DD fusion reaction assisted by the NBI beam direct reaction are employed for the commissioning of the fusion power plant. This study has revealed that there is a potential of the plasma commissioning scenario without the initial tritium inventory for Demo-CREST.