The reduction of the incident heat flux onto the divertor will be a necessity for the future thermonuclear reactors. Impurity seeding is recognized as an efficient way to achieve the partial detachment regime, which allows to dissipate a large fraction of power flux by radiation. This paper presents a heat flux real-time feedback system (RTFS) based on impurity seeding controlled by a combined ball-pen and Langmuir probe divertor array in the COMPASS tokamak. A number of features of the system have been studied, such as the type of impurity, seeding location, constants used in the real-time controller and the diagnostic selections. A detailed description of the designed RTFS and the results of the implementation are presented. The findings confirm the applicability of the RTFS for reduction and control of the divertor heat fluxes. Another important implication of this research is the ability of installing such systems in next-step devices.

减少进入偏滤器的入射热通量将是未来热核反应堆的必要条件。杂质播种被认为是实现部分脱离状态的有效方式，它允许通过辐射耗散大部分功率通量。本文提出了一种基于杂质播种的热通量实时反馈系统 (RTFS)，该系统由 COMPASS 托卡马克中的圆珠笔和朗缪尔探针偏滤器阵列组合控制。已经研究了系统的许多特征，例如杂质类型、播种位置、实时控制器中使用的常数和诊断选择。详细描述了设计的 RTFS 和实现的结果。研究结果证实了 RTFS 在减少和控制偏滤器热通量方面的适用性。