DEVELOPMENT OF AN RF DRIVEN NEGATIVE HYDROGEN-ION SOURCE

被引：3

作者：

TAKEIRI, Y ^{[1
]}

TAKANASHI, T ^{[1
]}

KANEKO, O ^{[1
]}

OKA, Y ^{[1
]}

ANDO, A ^{[1
]}

TSUMORI, K ^{[1
]}

KURODA, T ^{[1
]}

机构：

[1] GRAD UNIV ADV STUDIES,NAGOYA,AICHI 46401,JAPAN

来源：

FUSION ENGINEERING AND DESIGN | 1995年 / 26卷 / 1-4期

关键词：

D O I：

10.1016/0920-3796(94)00217-U

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A large r.f. driven negative hydrogen ion source has been constructed. R.f. negative ion sources have the potential of continuous and efficient operation for next-step neutral beam injection systems. The developed r.f. negative ion source is large for this fusion application. The r.f. plasma generator is a metal-walled multi-cusp bucket source with tent magnetic filter and has dimensions of 30 x 30 cm(2) cross-section and 19 cm depth. An internal induction coil is used as an r.f, antenna. The negative ion accelerator, which consists of three grids, produces nine beamlets with an energy of 60 keV. The r.f. power amplifier system generates 2 MH-30 kW for 1 s. The r.f. plasma was produced successfully under impedance matching condition. An ion current density of 150 mA cm 2 was obtained and the electron temperature was high, 5-10 eV, in the antenna vicinity. In the chamber center which is the negative ion production region, the electron temperature is still high, more than 3 eV. As a result, a negative ion current was not detected at an extraction energy of 1.2 keV.

引用

页码：501 / 506

页数：6

共 4 条

[1]

KRAUS W, 1991, 16TH P S FUS TECHN L, P1332

[2] RF DRIVEN MULTICUSP H-ION SOURCE [J].

LEUNG, KN ;

DEVRIES, GJ ;

DIVERGILIO, WF ;

HAMM, RW ;

HAUCK, CA ;

KUNKEL, WB ;

MCDONALD, DS ;

WILLIAMS, MD .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (01) :100-104

[3] EXTRACTION OF VOLUME-PRODUCED H- IONS FROM A MULTICUSP SOURCE [J].

LEUNG, KN ;

EHLERS, KW ;

BACAL, M .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1983, 54 (01) :56-61

[4] DEVELOPMENT OF LARGE AREA RF ION SOURCES FOR FUSION APPLICATIONS [J].

WELLS, SB ;

TAKEIRI, Y ;

NEWMAN, AF ;

MCADAMS, R ;

HOLMES, AJT .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (04) :2735-2737

← 1 →