Development of a 500 keV, 22 A D− ion source for the neutral beam injector for JT-60U
- 1 March 1996
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 67 (3) , 1018-1020
- https://doi.org/10.1063/1.1146743
Abstract
The first results of the performance test of the large negative ion source for a JT‐60U negative‐ion‐based neutral beam injector (N‐NBI) are presented. The ion source consists of a cesium seeded multicusp plasma generator, where negative ions are produced via volume and surface processes, a 110 cm×45 cm multiaperture extractor, and a three‐stage electrostatic accelerator. After negative ion production and voltage holding tests in test stands, the ion source was installed in the N‐NBI system and the full power test began. Up to now, the ion source has produced 400 keV, 5.9 A (2.4 MW) D− ion beams, the world highest D− current and beam power, with a pulse duration of 0.1 s.Keywords
This publication has 3 references indexed in Scilit:
- High energy negative-ion based neutral beam injection system for JT-60UFusion Engineering and Design, 1995
- Negative ion based neutral beam injector for JT-60UAIP Conference Proceedings, 1992
- A 14 cm×36 cm volume negative ion source producing multi-ampere H− ion beamsReview of Scientific Instruments, 1990