Commissioning and first results of the 174 GHz collective Thomson scattering diagnostic at Wendelstein 7-X

被引：1
|
作者：
Moseev, D. [1 ]
Ponomarenko, S. [1 ]
Laqua, H. P. [1 ]
Stange, T. [1 ]
Nielsen, S. K. [2 ]
Braune, H. [1 ]
Gantenbein, G. [3 ]
Illy, S. [3 ]
Jelonnek, J. [3 ]
Kasparek, W. [4 ]
Kuleshov, A. [5 ]
Krier, L. [1 ,3 ]
Lechte, C. [4 ]
Marsen, S. [1 ]
Nishiura, M. [6 ]
Plaum, B. [4 ]
Ragona, R. [2 ]
Ruess, T. [3 ]
Salewski, M. [2 ]
Stordiau, P. [7 ]
Thumm, M. [3 ]
Wolf, R. C. [1 ]
Zimmermann, J. [1 ]
机构：
[1] Max Planck Inst Plasma Phys, Wendelsteinstr 1, D-17493 Greifswald, Germany
[2] Tech Univ Denmark, Dept Phys, Fysikvej Bldg 309, DK-2800 Lyngby, Denmark
[3] Inst Pulsed Power & Microwave Technol, Karlsruhe Inst Technol, Hermann Von Helmholtz Pl 1,Buidling 421, D-76344 Eggenstein Leopoldshafen, Germany
[4] Stuttgart Univ, Inst Grenzflachenverfahrenstechn & Plasmatechnol, Pfaffenwaldring 31, D-70569 Stuttgart, Germany
[5] O Ya Usikov Inst Radiophys & Elect, Vacuum Elect Dept, Akad Proskury St 12, UA-61085 Kharkiv, Ukraine
[6] Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan
[7] Tech Univ Eindhoven, Dept Appl Phys, De Groene Loper 19, NL-5612 AP Eindhoven, Netherlands
来源：
JOURNAL OF INSTRUMENTATION | 2024年 / 19卷 / 03期
关键词：
Microwave radiometers; Microwave Antennas;
D O I：
10.1088/1748-0221/19/03/C03056
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Collective Thomson Scattering (CTS) diagnostics measure the scattering spectrum ofmonochromatic incident radiation off collective fluctuations in the plasma. In this contribution, wepresent the first results from the upgraded CTS diagnostic at Wendelstein 7-X (W7-X) operatingin the frequency range between 172 and 176 GHz. This frequency range allows for minimizationof noise originating from the electron cyclotron emission in the plasma. Consequently, the goodsignal-to-noise ratio allows measurements of fast ions or bulk plasma parameters with highertemporal resolution compared with the previously used 140 GHz system
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页数：10
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