A 1MeV, 1A negative ion accelerator test facility
Fusion Technology 1994(1995)
Abstract
For the Proof-of-Principle test of negative ion acceleration up to1 MeV, the beam energy required for ITER, a negative ion test facility named MeV Test Facility (MTF) and an ion source/accelerator have been designed and constructed. They are designed to produce a 1 MeV H- beam at a low source pressure of 0.13Pa. The MTF has a power supply system, which constituts of a 1MV, I A, 60 s Cockcroft-Walton type dc high energy generator and power supplies for negative ion generation and extraction (ion source power supplies). The negative ion source/accelerator is composed of a cesiated volume source and a 5-stage, multi-aperture, electrostatic accelerator. The MTF and the ion souce/accelerator have been completed, and the accelertion test up to 1 MeV of the H- ions has started.
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Key words
accelerator,ion,test
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