Neutral beam injection simulation of EAST

Development and conditioning of the high current ion source for the EAST neutral beam injector

“…A 4 MW NBI system is under development for the Experimental Advanced Superconducting Tokamak (EAST) device for the plasma heating and current driving [4][5][6]. The EAST NBI system contains two high current ion sources with the same structure.…”

Simulation of EAST off-axis neutral beam heating and current drive

“…For each type, we consider co-/counter-NBI, as well as positive/negative (in the direction of/in the direction opposite to the plasma current) B t . For type A, C and D, only the beamline 1, which is a favorable beamline for NB heating and CD, as shown in [12] and the following discussions, is considered.…”

“…The numerical results of plasma behavior under NBI with typical designed parameters (on-axis NBI) and variable profiles of density and temperature have been reported in [11]. The influence of the injection angle on the neutral beam (NB) heating and CD has also been investigated by simulation in [12]. However, offaxis NB heating and CD have not been considered until now.…”

Upgrade of accelerator of high current ion source for EAST neutral beam injector

“…A 4 MW neutral beam injector (NBI) system based on positive ion source has beam developed for the experimental Advanced Superconducting Tokamak (EAST) for the plasma heating and current drive [1,2]. It was designed with beam energy of 50-80 keV, beam power of 2-4 MW, beam duration of 10-100 s. The high power ion source is composed of the hot cathode bucket arc chamber and tetrode slot accelerator, which is shown in Fig.…”