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EAST高频弹丸注入装置主要用于完成EAST托卡马克装置的加料和边界局域模(ELM)实验研究。注入器主体部分已经完成构建,为了使系统安全连接到EAST装置,需要设计一套对应的真空系统。高频弹丸注入装置真空系统采用了全新的设计,在注入器主体上连接三个缓冲室,将推进气体及时抽走,降低成冰室压强以此提高成冰质量。注入器与EAST装置通过两级差分系统连接,进一步降低装置压强至5×10-4Pa量级,完成与EAST的安全连接不影响正常放电。
The EAST high-frequency projectile injection unit is mainly used to complete the feeding and boundary local mode (ELM) experiments of the EAST tokamak. The main part of the injector has been constructed and, in order to safely connect the system to the EAST, a corresponding vacuum system needs to be designed. High-frequency projectile injection device vacuum system uses a new design, the injector body connected to the three buffer chamber, the propellant gas pumped in time to reduce the pressure into the ice chamber in order to improve the quality of ice. The injector and the EAST device are connected by a two-stage differential system to further reduce the device pressure to the level of 5 × 10 -4 Pa. The complete safety connection with EAST does not affect the normal discharge.