Observation of the "self-healing" of an error field island in the large helical device.
It was observed that the vacuum magnetic island produced by an external error magnetic field in the large helical device shrank in the presence of plasma. This was evidenced by the disappearance of flat regions in the electron temperature profile obtained by Thomson scattering. This island behavior depended on the magnetic configuration in which the plasmas were produced.
Narihara
K
K
National Institute for Fusion Science, Toki, 509-5292, Japan.
Watanabe
K Y
KY
Yamada
I
I
Morisaki
T
T
Tanaka
K
K
Sakakibara
S
S
Ida
K
K
Sakamoto
R
R
Ohyabu
N
N
Ashikawa
N
N
Emoto
M
M
Funaba
H
H
Goto
M
M
Hayashi
H
H
Idei
H
H
Ikeda
K
K
Inagaki
S
S
Inoue
N
N
Kaneko
O
O
Kawahata
K
K
Kobuchi
T
T
Komori
A
A
Kubo
S
S
Kumazawa
R
R
Masuzaki
S
S
Miyazawa
J
J
Morita
S
S
Motojima
O
O
Murakami
S
S
Muto
S
S
Mutoh
T
T
Nagayama
Y
Y
Nakamura
Y
Y
Nakanishi
H
H
Nishimura
K
K
Noda
N
N
Notake
T
T
Ohdachi
S
S
Oka
Y
Y
Ohkubo
K
K
Osakabe
M
M
Ozaki
S
S
Peterson
B J
BJ
Sagara
A
A
Saito
K
K
Sasao
H
H
Sasao
M
M
Sato
K
K
Sato
M
M
Seki
T
T
Shimozuma
T
T
Shoji
C
C
Sudo
S
S
Suzuki
H
H
Takayama
A
A
Takechi
M
M
Takeiri
Y
Y
Tamura
N
N
Toi
K
K
Tokuzawa
N
N
Torii
Y
Y
Tsumori
K
K
Watari
T
T
Yamada
H
H
Yamaguchi
S
S
Yamamoto
S
S
Yamazaki
K
K
Yoshimura
Y
Y