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 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.
Jeong
Seung Ho
SH
Korea Atomic Energy Research Institute, Daejeon, Republic of Korea.
Chang
Doo-Hee
DH
In
Sang Ryul
SR
Lee
Kwang Won
KW
Oh
Byung-Hoon
BH
Yoon
Byung-Joo
BJ
Song
Woo Sob
WS
Kim
Jinchoon
J
Kim
Tae Seong
TS