EXPERIMENTAL-EVIDENCE OF 3-WAVE COUPLING ON PLASMA TURBULENCE

被引：45

作者：

HIDALGO, C

SANCHEZ, E

ESTRADA, T

BRANAS, B

RITZ, CP

UCKAN, T

HARRIS, J

WOOTTON, AJ

机构：

[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37931

[2] UNIV TEXAS,FUS RES CTR,AUSTIN,TX 78712

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.71.3127

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimental evidence of the nonlinear nature of the broadband edge fluctuations has been obtained in edge turbulence in the Advanced Toroidal Facility torsatron. Whereas little nonlinear wave interaction is found in the scrape-off layer region, three-wave coupling is enhanced in the plasma edge region (r < a(shear)). The degree of three-wave coupling strongly depends on the plasma conditions; it decreases in the temperature range (T(e) almost-equal-to 10 eV) where the ionization rates depend strongly on T(e) suggesting a link between ionization source and turbulence.

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页码：3127 / 3130

页数：4

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