抄録
The excitation of the drift-wave instability by the ion flow velocity shear in the absence of the electron drift flow was experimentally demonstrated. The fluctuation amplitude was observed to increase with increasing the shear strength, but the instability was found to be gradually stabilized when the shear strength exceeds the critical value. The experimental results are in good agreement with the dependence of the theoretical growth rate on the shear parameter, which is calculated in the kinetic treatment including the effect of the radial density gradient.
| 元の言語 | English |
|---|---|
| ジャーナル | Physical Review Letters |
| 巻 | 90 |
| 発行部数 | 12 |
| 出版物ステータス | Published - 2003 3 28 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
これを引用
Drift-wave instability excited by field-aligned ion flow velocity shear in the absence of electron current. / Kaneko, T.; Tsunoyama, Hironori; Hatakeyama, R.
：: Physical Review Letters, 巻 90, 番号 12, 28.03.2003.研究成果: Article
}
TY - JOUR
T1 - Drift-wave instability excited by field-aligned ion flow velocity shear in the absence of electron current
AU - Kaneko, T.
AU - Tsunoyama, Hironori
AU - Hatakeyama, R.
PY - 2003/3/28
Y1 - 2003/3/28
N2 - The excitation of the drift-wave instability by the ion flow velocity shear in the absence of the electron drift flow was experimentally demonstrated. The fluctuation amplitude was observed to increase with increasing the shear strength, but the instability was found to be gradually stabilized when the shear strength exceeds the critical value. The experimental results are in good agreement with the dependence of the theoretical growth rate on the shear parameter, which is calculated in the kinetic treatment including the effect of the radial density gradient.
AB - The excitation of the drift-wave instability by the ion flow velocity shear in the absence of the electron drift flow was experimentally demonstrated. The fluctuation amplitude was observed to increase with increasing the shear strength, but the instability was found to be gradually stabilized when the shear strength exceeds the critical value. The experimental results are in good agreement with the dependence of the theoretical growth rate on the shear parameter, which is calculated in the kinetic treatment including the effect of the radial density gradient.
UR - http://www.scopus.com/inward/record.url?scp=0038613095&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038613095&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0038613095
VL - 90
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 12
ER -