Development of a 500 keV, 22 A D{sup {minus}} ion source for the neutral beam injector for JT-60U
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01 (Japan)
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{times}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{sup {minus}} ion beams, the world highest D{sup {minus}} current and beam power, with a pulse duration of 0.1 s. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 279230
- Report Number(s):
- CONF-9509125-; ISSN 0034-6748; TRN: 96:021411
- Journal Information:
- Review of Scientific Instruments, Vol. 67, Issue 3; Conference: 6. international conference on ion sources, Whistler (Canada), 10-16 Sep 1995; Other Information: PBD: Mar 1996
- Country of Publication:
- United States
- Language:
- English
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