Frequency hopping millimeter wave reflectometer

被引：24

作者：

Cupido, L ^{[1
]}

Sánchez, J

Estrada, T

机构：

[1] Univ Tecn Lisboa, Ctr Fusao Nucl, EURATOM IST Assoc, Inst Super Tecn, P-1049001 Lisbon, Portugal

[2] CIEMAT, Assoc Euratom, Lab Nacl Fus, E-28040 Madrid, Spain

来源：

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

关键词：

D O I：

10.1063/1.1788834

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Reflectometry techniques are employed to study density fluctuations in fusion plasmas either using one channel or two channels with slightly different frequencies, to probe simultaneously closely spaced plasma layers (for radial correlation studies). The present article describes a novel system with increasing measuring capability utilizing only one single frequency that can be hopped during the discharge. This broadband fast hopping mm-wave reflectometer (BFHR) has been developed for both ASDEX upgrade (Max Plank Institute-Garching-Germany) and TJ-II stellarator (CIEMAT-Spain). The BFHR incorporates frequency synthesizers at microwave frequencies multiplied into the millimeter-wave range and uses heterodyne detection for sensitive phase and amplitude measurements. (C) 2004 American Institute of Physics.

引用

页码：3865 / 3867

页数：3

共 8 条

[1] First plasmas in the TJ-II flexible Heliac [J].

Alejaldre, C ;

Alonso, J ;

Almoguera, L ;

Ascasíbar, E ;

Baciero, A ;

Balbín, R ;

Blaumoser, M ;

Botija, J ;

Brañas, B ;

de la Cal, E ;

Cappa, A ;

Carrasco, R ;

Castejón, F ;

Cepero, JR ;

Cremy, C ;

Doncel, J ;

Dulya, C ;

Estrada, T ;

Fernández, A ;

Francés, M ;

Fuentes, C ;

García, A ;

García-Cortés, I ;

Guasp, J ;

Herranz, J ;

Hidalgo, C ;

Jiménez, JA ;

Kirpitchev, I ;

Krivenski, V ;

Labrador, I ;

Lapayese, F ;

Likin, K ;

Liniers, M ;

López-Fraguas, A ;

López-Sánchez, A ;

de la Luna, E ;

Martín, R ;

Martínez, A ;

Medrano, M ;

Méndez, P ;

McCarthy, K ;

Medina, F ;

van Milligen, B ;

Ochando, M ;

Pacios, L ;

Pastor, I ;

Pedrosa, MA ;

de la Peña, A ;

Portas, A ;

Qin, J .

PLASMA PHYSICS AND CONTROLLED FUSION, 1999, 41 :A539-A548

[2] Various types of microwave reflectometer for density fluctuation measurements [J].

Ejiri, A ;

Kawahata, K ;

Tanaka, K .

FUSION ENGINEERING AND DESIGN, 1997, 34-35 :429-432

[3] MICROWAVE REFLECTOMETRY FOR EDGE DENSITY PROFILE MEASUREMENTS ON TFTR [J].

HANSON, GR ;

WILGEN, JB ;

BIGELOW, TS ;

COLLAZO, I ;

ENGLAND, AC ;

MURAKAMI, M ;

RASMUSSEN, DA ;

THOMAS, CE ;

WILSON, JR ;

PARK, HK .

PLASMA PHYSICS AND CONTROLLED FUSION, 1994, 36 (12) :2073-2082

[4] BROAD-BAND HETERODYNE REFLECTOMETER AT THE W7-AS STELLARATOR [J].

HARFUSS, HJ ;

ESTRADA, T ;

HIRSCH, M ;

GEIST, T .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1994, 65 (07) :2284-2290

[5] FLUCTUATION MEASUREMENTS IN THE DIII-D AND TEXT TOKAMAKS VIA COLLECTIVE SCATTERING AND REFLECTOMETRY [J].

PEEBLES, WA ;

BAANG, S ;

BROWER, DL ;

BURRELL, K ;

DOYLE, EJ ;

GROEBNER, RJ ;

LEHECKA, T ;

LUHMANN, NC ;

MATSUMOTO, H ;

PHILIPONA, R ;

RETTIG, C ;

RHODES, TL ;

YU, CX .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1990, 61 (11) :3509-3519

[6] Signal amplitude effects on reflectometer studies of density turbulence in tokamaks [J].

Rhodes, TL ;

Peebles, WA ;

Doyle, EJ ;

Pribyl, P ;

Gilmore, M ;

Moyer, RA ;

Lehmer, RD .

PLASMA PHYSICS AND CONTROLLED FUSION, 1998, 40 (04) :493-510

[7] Microwave reflectometry for turbulence studies on ASDEX Upgrade [J].

Ribeiro, TT ;

Serra, F ;

Conway, GD ;

Manso, ME ;

Ryter, F ;

Cupido, L ;

Kurzan, B ;

Silva, A ;

Suttrop, W ;

Vergamota, S .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (02) :1366-1371

[8]

VAYAKIS G, 1994, P IAEA TECHN COMM M

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