Development and implementation of Supersonic Molecular Beam Injection for EAST tokamak
Development and implementation of Supersonic Molecular Beam Injection for EAST tokamak
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DOI：
10.1016/j.fusengdes.2018.06.018
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发表时间：
2018-09
影响因子：
1.7
通讯作者：
Yuan Xiaolin;Jiangang Li;Jinhua Wu;J. Li;Yue Chen;Zhuang Huidong;Zhou Yue;Xingwei Zheng;Jiansheng Hu
中科院分区：
文献类型：
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作者：
Yuan Xiaolin;Jiangang Li;Jinhua Wu;J. Li;Yue Chen;Zhuang Huidong;Zhou Yue;Xingwei Zheng;Jiansheng Hu
作为一种控制等离子体密度、抑制边缘局域模（ELM）和补充燃料的方法，在实验先进超导托卡马克（EAST）装置上成功地研制和实现了超声分子束注入（SMBI）系统。SMBI被设计为产生400-1200 m/s的氢/氘分子束，用于注入等离子体。为了提高SMBI的测量精度，还开发了一种用于测量注入粒子数的创新系统。此外，设计了一种可移动的喷嘴结构，以调节喷嘴与等离子体之间的距离，从而通过减小喷嘴与等离子体之间的距离来提高SMBI的燃料加注效率。SMBI的成功实施为EAST等离子体密度反馈控制和ELM减缓研究提供了重要工具。据我们所知，SMBI系统的工程设计过程中的EAST没有以前的报道，因此，SMBI系统的结构，实现细节，和测试结果在这里是第一次。
As a method for plasma density control, Edge Localized Mode (ELM) mitigation and refueling, a Supersonic Molecular Beam Injection (SMBI) system is successfully developed and implemented for the Experimental Advanced Superconducting Tokamak (EAST). The SMBI is designed to produce a 400–1200 m/s molecular beam of hydrogen/deuterium for injecting into the plasma. An innovative system for measuring the injected particle number is also developed to increase the measuring accuracy of SMBI. In addition, a movable structure of the nozzle is designed to adjust the distance between the nozzle and plasma, in order to improve the fueling efficiency of SMBI by decreasing this separation distance. The successful implementation of SMBI provides an important tool for studying plasma density feedback control and ELM mitigation on the EAST campaign. To the best of our knowledge, the engineering design process of the SMBI system on the EAST has not been reported previously; therefore, the structure, implementation details, and the test results of the SMBI system are presented herein for the first time.