Millimeter wave imaging diagnostic for simultaneous density and temperature fluctuation measurements on the TEXTOR Tokamak

Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004. Pub Date : 2004-01-01 DOI:10.1109/ICIMW.2004.1422053

A. Donne, I. Classen, C. Domier, M. Johnson, N. Luhmann, E. Mazzucato, T. Munsat, H. Park, M. J. van de Pol, J. Wang, Z. Xia

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Abstract

A millimeter wave imaging diagnostic for simultaneous density and temperature fluctuation measurements has been developed for operation on the TEXTOR Tokamak. The system is based on the quasi-optical imaging of the radiation from the plasma onto state-of-the-art millimeter wave mixer/receiver arrays. The temperature (fluctuation) measurements are based on the observation of electron cyclotron emission from a 2D plasma area with 8/spl times/16 sample volumes of about 1 cm/sup 3/. The density fluctuation measurements are based on active probing by means of reflectometry. In this case reflections from 16 sample volumes, arranged along the cutoff surfaces are diagnosed. The combined millimeter wave imaging diagnostic offers distinct advantages above the commonly used non-imaging diagnostics.

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在TEXTOR托卡马克上同时测量密度和温度波动的毫米波成像诊断

一种用于同时测量密度和温度波动的毫米波成像诊断已经开发出来，用于在TEXTOR托卡马克上运行。该系统基于等离子体辐射的准光学成像到最先进的毫米波混频器/接收器阵列。温度(波动)测量是基于对二维等离子体区域的电子回旋辐射的观测，样品体积约为1 cm/sup 3/ 8/spl /16。密度波动测量是基于反射法的主动探测。在这种情况下，沿着截止面排列的16个样品体的反射被诊断出来。与常用的非成像诊断相比，联合毫米波成像诊断具有明显的优势。

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Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.

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