Abstract
A 4MW high current ion source is developed for the Experimental Advanced Superconducting Tokamak (EAST) neutral beam injector (NBI). The EAST-NBI ion source is conditioned and the primary results and analysis are reported in this paper. The plasma current of plasma generator reaches 1100A and maximum arc power reaches 90kW. Plasma density uniformity is measured by Langmuir probes and is estimated as 90%. The hydrogen ion beam extracted from a tetrode multi-slot accelerator with beam energy of 80keV. The mean arc efficiency is 0.5A/kW and beam pervereance is 2.5μp. The experimental results show that, the high current ion source is developed and conditioned successfully.
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Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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