Measurement of RF Transmission Mode in ITER Relevant EC H&CD Transmission Line

被引：28
|
作者：
Oda, Yasuhisa [1 ]
Kajiwara, Ken [1 ]
Takahashi, Koji [1 ]
Kasugai, Atsushi [1 ]
Shapiro, Michael A. [2 ]
Temkin, Richard J. [2 ]
Sakamoto, Keishi [1 ]
机构：
[1] Japan Atom Energy Agcy, Naka Fus Res Inst, Plasma Heating Res Grp, Naka, Ibaraki, Japan
[2] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA
来源：
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2010年 / 31卷 / 08期
关键词：
ITER; Corrugated waveguide; Gyrotron; Mode content; CORRUGATED WAVE-GUIDE; GYROTRON; DESIGN;
D O I：
10.1007/s10762-010-9666-4
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The preliminary results of mode measurement in the ITER relevant 40 m long transmission test line composed from 63.5 mm diameter corrugated waveguides and miter bends are presented. The field patterns were measured by taking temperature profiles on a paper screen placed in front of the waveguide end using an infrared imaging camera. The complex electric field at the waveguide end was retrieved from the measured temperature profiles. As a result, the transmission power includes 87% of HE(11) mode and 6% of LP(11) odd (HE(21)+TE(01)) mode and small ratios of other modes. The mode content had small dependence on length of the transmission line. This result indicated that the higher order mode content generated at the input of the transmission line is conserved and propagated through the transmission line. This suggests that the initial RF coupling to the waveguide is critical since it affects the launcher efficiency.
引用
收藏
页码：949 / 957
页数：9
相关论文
共 50 条
  • [21] Nearing final design of the ITER EC H&CD Upper Launcher
    Strauss, D.
    Aiello, G.
    Bertizzolo, R.
    Bruschi, A.
    Casal, N.
    Chavan, R.
    Farina, D.
    Figini, L.
    Gagliardi, M.
    Goodman, T. P.
    Grossetti, G.
    Heemskerk, C.
    Henderson, M. A.
    Kasparek, W.
    Koning, J.
    Landis, J. -D.
    Leichtle, D.
    Meier, A.
    Moro, A.
    Nowak, S.
    Pacheco, J.
    Platania, P.
    Plaum, B.
    Poli, E.
    Ramseyer, F.
    Ronden, D.
    Saibene, G.
    Mas-Sanchez, A.
    Silva, P. Santos
    Sauter, O.
    Scherer, T.
    Schreck, S.
    Sozzi, C.
    Spaeh, P.
    Vagnoni, M.
    Vaccaro, A.
    Weinhorst, B.
    FUSION ENGINEERING AND DESIGN, 2019, 146 : 23 - 26
  • [22] The ITER EC H&CD upper launcher: EM disruption analyses
    Vaccaro, A.
    Aiello, G.
    Grossetti, G.
    Meier, A.
    Scherer, T. A.
    Schreck, S.
    Spaeh, P.
    Strauss, D.
    Saibene, G.
    Cavinato, M.
    FUSION ENGINEERING AND DESIGN, 2013, 88 (6-8) : 1042 - 1045
  • [23] Guidelines for Internal Optics Optimization of the ITER EC H&CD Upper Launcher
    Moro, A.
    Bruschi, A.
    Figini, L.
    Chavan, R.
    Farina, D.
    Goodman, T. P.
    Krause, A.
    Henderson, M. A.
    Landis, J. D.
    Platania, P.
    Saibene, G.
    Galan, F. Sanchez
    Sozzi, C.
    Toussaint, M.
    RADIOFREQUENCY POWER IN PLASMAS, 2014, 1580 : 550 - 553
  • [24] Optimization of millimeter wave system in ITER Equatorial EC H&CD Launcher
    Kajiwara, K.
    Takahashi, K.
    Oda, Y.
    Kobayashi, N.
    Sakamoto, K.
    FUSION ENGINEERING AND DESIGN, 2014, 89 (01) : 6 - 10
  • [25] Beam propagation and stray radiation in the ITER EC H&CD Upper Launcher
    Platania, Paola
    Bruschi, Alex
    Farina, Daniela
    Figini, Lorenzo
    Goodman, Timothy
    Krause, Alexandra
    Henderson, Mark A.
    Moro, Alessandro
    Saibene, Gabriella
    Toussaint, Matthieu
    Sozzi, Carlo
    EC18 - 18TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON CYCLOTRON RESONANCE HEATING, 2015, 87
  • [26] The ITER EC H&CD upper launcher: Analysis of remote handling compatibility
    Ronden, D. M. S.
    De Baar, M.
    Chavan, R.
    Elzendoorn, B. S. Q.
    Goodman, T.
    Heernskerk, C. J. M.
    Henderson, M. A.
    Koning, J. F.
    Saibene, G.
    Spaeh, P.
    Strauss, D.
    FUSION ENGINEERING AND DESIGN, 2011, 86 (6-8) : 963 - 966
  • [27] Prototyping of the Blanket Shield Module for the ITER EC H&CD Upper launcher
    Spaeh, Peter
    Aiello, G.
    Binni, A.
    Gessner, R.
    Goldmann, A.
    Grossetti, G.
    Kroiss, A.
    Meier, A.
    Obermeier, C.
    Scherer, T.
    Schreck, S.
    Strauss, D.
    Vaccaro, A.
    FUSION ENGINEERING AND DESIGN, 2014, 89 (7-8) : 960 - 964
  • [28] Optimization of the ITER EC H&CD Functional Capabilities while Relaxing the Engineering Constraints
    Farina, D.
    Henderson, M.
    Figini, L.
    Saibene, G.
    Goodman, T.
    Kajiwara, K.
    Omori, T.
    Poli, E.
    Strauss, D.
    Takahashi, K.
    RADIOFREQUENCY POWER IN PLASMAS, 2014, 1580 : 175 - 182
  • [29] Manufacturing studies of double wall components for the ITER EC H&CD upper launcher
    Spaeh, P.
    Aiello, G.
    Goldmann, A.
    Kleefeldt, K.
    Kroiss, A.
    Meier, A.
    Obermeier, C.
    Scherer, T.
    Schreck, S.
    Serikov, A.
    Strauss, D.
    Vaccaro, A.
    FUSION ENGINEERING AND DESIGN, 2012, 87 (7-8) : 956 - 960
  • [30] Design of a high power millimeter wave launcher for EC H&CD system on ITER
    Kajiwara, K.
    Takahashi, K.
    Kobayashi, N.
    Kasugai, A.
    Sakamoto, K.
    FUSION ENGINEERING AND DESIGN, 2009, 84 (01) : 72 - 77
12345