Measurement of low frequency plasma fluctuations with a visible light detector in GAMMA 10

被引：14

作者：

Higaki, H ^{[1
]}

Ichimura, M ^{[1
]}

Horinouchi, K ^{[1
]}

Nakagome, K ^{[1
]}

Kakimoto, S ^{[1
]}

Yamaguchi, Y ^{[1
]}

Ide, K ^{[1
]}

Inoue, D ^{[1
]}

Nagai, H ^{[1
]}

Yoshikawa, M ^{[1
]}

Nakashima, Y ^{[1
]}

Cho, T ^{[1
]}

机构：

[1] Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 3058577, Japan

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2004年 / 75卷 / 10期

关键词：

D O I：

10.1063/1.1789263

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Low frequency fluctuations of a plasma in the central cell of the GAMMA10 tandem mirror have been observed with electrostatic probes (ESPs) installed at the peripheral region of the plasma. Typical plasma parameters for a hot ion mode operation are n(e)similar to2x10(12) cm(-3), T(i)similar to4 keV, T(e)similar to100 eV, B=4 kG, and r(p)=18 cm. Although the ESP is an effective tool to measure local plasma parameters and fluctuations, it can be damaged with the higher electron temperature. Here, a new visible light detector was introduced, which could measure the plasma fluctuations without contacting the plasma. The obtained results were compared with those of ESPs. It is found that the visible light detector is applicable when the electron temperature becomes much higher in the future experiment. (C) 2004 American Institute of Physics.

引用

页码：4085 / 4087

页数：3

共 6 条

[1] ICRF heating in magnetic mirror plasmas [J].

Ichimura, M ;

Higaki, H ;

Saosaki, S ;

Kano, H ;

Kakimoto, S ;

Tokumoto, K ;

Yamaguchi, Y ;

Hojo, H ;

Inutake, M ;

Yatsu, K .

PLASMA PHYSICS REPORTS, 2002, 28 (09) :727-733

[2] AMBIPOLAR POTENTIAL EFFECT ON A DRIFT-WAVE MODE IN A TANDEM-MIRROR PLASMA [J].

MASE, A ;

JEONG, JH ;

ITAKURA, A ;

ISHII, K ;

INUTAKE, M ;

MIYOSHI, S .

PHYSICAL REVIEW LETTERS, 1990, 64 (19) :2281-2284

[3] Hα measurements on hot-ion-mode plasmas in the minimum-B anchor cell of the GAMMA 10 tandem mirror [J].

Nakashima, Y ;

Kobayashi, S ;

Aminaka, H ;

Fukasawa, T ;

Shoji, M ;

Ishimoto, Y ;

Kubota, Y ;

Yoshikawa, M ;

Kawamori, E ;

Ichimura, M ;

Islam, MK ;

Yatsu, K .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2003, 74 (03) :2115-2118

[4] OBSERVATION OF A FLUTE MODE EXCITED IN THE CENTER CELL OF THE GAMMA-10 TANDEM MIRROR BY USING FAR-INFRARED LASER SCATTERING [J].

SAITO, T ;

FUJITA, M ;

MASE, A ;

INUTAKE, M ;

ISHII, K ;

MIYOSHI, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (10) :3281-3284

[5]

SAOSAKI S, 2001, T FUSION TECHNOL, V39, P261

[6] Macroscopic stability control experiments with phased antennas in the GAMMA10 tandem mirror [J].

Tanaka, S ;

Ichimura, M ;

Takayama, S ;

Inutake, M ;

Furukawa, S ;

Kumagai, A ;

Kanazawa, S ;

Nakamura, M ;

Ishikawa, E ;

Satake, C ;

Motegi, S ;

Hojo, H ;

Mase, A ;

Ishii, K ;

Tamano, T ;

Yatsu, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (06) :1963-1967

← 1 →