Study on an azimuthal line cusp ion source for the KSTAR neutral beam injector

In this study it is found that the cusp magnetic field configuration of an anode bucket influences the primary electron behavior. An electron orbit code (ELEORBIT code) showed that an azimuthal line cusp (cusp lines run azimuthally with respect to the beam extraction direction) provides a longer pri...

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Published inReview of scientific instruments Vol. 79; no. 2 Pt 2; p. 02B310
Main Authors Jeong, Seung Ho, Chang, Doo-Hee, In, Sang Ryul, Lee, Kwang Won, Oh, Byung-Hoon, Yoon, Byung-Joo, Song, Woo Sob, Kim, Jinchoon, Kim, Tae Seong
Format Journal Article
LanguageEnglish
Published United States 01.02.2008
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Summary:In this study it is found that the cusp magnetic field configuration of an anode bucket influences the primary electron behavior. An electron orbit code (ELEORBIT code) showed that an azimuthal line cusp (cusp lines run azimuthally with respect to the beam extraction direction) provides a longer primary electron confinement time than an axial line cusp configuration. Experimentally higher plasma densities were obtained under the same arc power when the azimuthal cusp chamber was used. The newly designed azimuthal cusp bucket has been investigated in an effort to increase the plasma density in its plasma generator per arc power.
ISSN:0034-6748
DOI:10.1063/1.2805351