Effects of two-dimensional and finite density fluctuations on O-X correlation reflectometry

被引：14

作者：

Kramer, GJ ^{[1
]}

Nazikian, R ^{[1
]}

Valeo, E ^{[1
]}

机构：

[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2002年 / 44卷 / 02期

关键词：

D O I：

10.1088/0741-3335/44/2/102

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The correlation between O- and X-mode reflectometer signals is studied with a one- and two-dimensional reflectometer model in order to explore its feasibilities as a q-profile diagnostic. it was found that two-dimensional effects and finite fluctuation levels both decrease the O-X correlation, At very low fluctuation levels, which are usually present in the plasma core, there is a good possibility of determining the local magnetic field strength and use that as a constraint for the equilibrium reconstruction.

引用

收藏

页码：L11 / L19

页数：9

相关论文

共 16 条

[1] RELATIVISTIC EXPRESSIONS FOR PLASMA CUTOFFS [J].

BINDSLEV, H .

PLASMA PHYSICS AND CONTROLLED FUSION, 1993, 35 (09) :1093-1102

[2] DESIGN, CONSTRUCTION, AND PROPERTIES OF THE LARGE PLASMA RESEARCH DEVICE - THE LAPD AT UCLA [J].

GEKELMAN, W ;

PFISTER, H ;

LUCKY, Z ;

BAMBER, J ;

LENEMAN, D ;

MAGGS, J .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (12) :2875-2883

[3] Dual mode (ordinary-extraordinary) correlation reflectometry for magnetic field and turbulence measurements (invited) [J].

Gilmore, M ;

Peebles, WA ;

Nguyen, XV .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01) :293-300

[4] Investigation of dual mode (O-X) correlation reflectometry for determination of magnetic field strength [J].

Gilmore, M ;

Peebles, WA ;

Nguyen, XV .

PLASMA PHYSICS AND CONTROLLED FUSION, 2000, 42 (06) :655-668

[5]

GILMORE MS, COMMUNICATION

[6] Determination of local tokamak parameters by magnetohydrodynamic spectroscopy [J].

Holties, HA ;

Fasoli, A ;

Goedbloed, JP ;

Huysmans, GTA ;

Kerner, W .

PHYSICS OF PLASMAS, 1997, 4 (03) :709-719

[7] Frequency chirping of core-localized toroidicity-induced Alfven eigenmodes and their coupling to global Alfven eigenmodes [J].

Kramer, GJ ;

Cheng, CZ ;

Fu, GY ;

Kusama, Y ;

Nazikian, R ;

Ozeki, T ;

Tobita, K .

PHYSICAL REVIEW LETTERS, 1999, 83 (15) :2961-2964

[8] The determination of the q-profile in the plasma core from Alfven eigenmodes [J].

Kramer, GJ ;

Oikawa, T ;

Fujita, T ;

Kamada, Y ;

Kusama, Y ;

Tobita, K ;

Ozeki, T ;

Cheng, CZ ;

Nazikian, R .

PLASMA PHYSICS AND CONTROLLED FUSION, 1998, 40 (06) :863-869

[9] THE MULTICHANNEL MOTIONAL STARK-EFFECT DIAGNOSTIC ON TFTR [J].

LEVINTON, FM .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (10) :5157-5160

[10] Q-PROFILE MEASUREMENTS IN THE TOKAMAK FUSION TEST REACTOR [J].

LEVINTON, FM ;

BATHA, SH ;

YAMADA, M ;

ZARNSTORFF, MC .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (07) :2554-2561