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Title: The R and D progress of 4 MW EAST-NBI high current ion source

A high current ion source, which consists of the multi-cusp bucket plasma generator and tetrode accelerator with multi-slot apertures, is developed and tested for the Experimental Advanced Superconducting Tokamak neutral beam injector. Three ion sources are tested on the test bed with arc power of 80 kW, beam voltage of 80 keV, and beam power of 4 MW. The arc regulation technology with Langmuir probes is employed for the long pulse operation of ion source, and the long pulse beam of 50 keV @ 15.5 A @ 100 s and 80 keV @ 52A @ 1s are extracted, respectively.
Authors:
; ; ; ; ; ; ; ;  [1]
  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China)
Publication Date:
OSTI Identifier:
22253849
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; APERTURES; CUSPED GEOMETRIES; ELECTRIC POTENTIAL; HT-7U TOKAMAK; ION BEAMS; ION SOURCES; KEV RANGE 10-100; LANGMUIR PROBE; PULSES