Design aspects for a pulsed-mode, high-intensity, heavy negative ion source

Author

Alton, G.D.

Author_Institution

Oak Ridge Nat. Lab., TN, USA

fYear

1991

fDate

6-9 May 1991

Firstpage

1937

Abstract

A high-intensity, plasma-sputter, negative ion source which utilizes multi-cusp, magnetic-field, plasma-confinement techniques has been designed at the Oak Ridge National Laboratory (ORNL). The source is an axial-geometry version of the radial-geometry source which has demonstrated pulsed-mode peak intensity levels of several milliamperes for a wide spectrum of heavy negative ion species. The mechanical design features include provisions for fast interchange of sputter samples, ease of maintenance, direct cooling of the discharge chamber, and the use of easily replaced coaxial LaB/sub 6/ cathodes.<>

Keywords

ion sources; Oak Ridge National Laboratory; axial-geometry; coaxial LaB/sub 6/ cathodes; direct cooling; discharge chamber; heavy negative ion source; high-intensity; magnetic-field; maintenance; multi-cusp; plasma-confinement; plasma-sputter; pulsed-mode; pulsed-mode peak intensity levels; radial-geometry source; Assembly; Cathodes; Coaxial components; Fault location; Ion sources; Ovens; Particle beams; Plasma accelerators; Plasma sources; Probes;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164828

Filename

164828