title: The supersonic molecular beam injector as a reliable tool for plasma fueling and physics experiment on HL-2A.
abstract: On HL-2A tokamak, supersonic molecular beam injection (SMBI) has been developed as a routine refueling method. The key components of the system are an electromagnetic valve and a conic nozzle. The valve and conic nozzle are assembled to compose the simplified Laval nozzle for generating the pulsed beam. The appurtenance of the system includes the cooling system serving the cooled SMBI generation and the in situ calibration component for quantitative injection. Compared with the conventional gas puffing, the SMBI features prompt response and larger fueling flux. These merits devote the SMBI a good fueling method, an excellent plasma density feedback control tool, and an edge localized mode mitigation resource.
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: C Y
authors: CY
authors: Chen
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: D L
authors: DL
authors: Yu
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: B B
authors: BB
authors: Feng
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: L H
authors: LH
authors: Yao
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: X M
authors: XM
authors: Song
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: L G
authors: LG
authors: Zang
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: X Y
authors: XY
authors: Gao
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: Q W
authors: QW
authors: Yang
authors: Southwestern Institute of Physics, Chengdu 610041, China.
authors: X R
authors: XR
authors: Duan