Design, Development, and Operation of Seven Channels' 100-GHz Interferometer for Plasma Density Measurement

被引:17
作者
Atrey, Praveen Kumar [1 ,2 ]
Pujara, Dhaval [1 ]
Mukherjee, Subroto [2 ]
Tanna, Rakesh L. [2 ]
机构
[1] Nirma Univ, Inst Technol, Ahmadabad 382481, Gujarat, India
[2] Inst Plasma Res, Gandhinagar 382428, India
关键词
Density measurements; interferometry; microwave circuits; plasma measurements;
D O I
10.1109/TPS.2018.2890307
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
A seven-channel microwave interferometer (100 GHz) is designed, developed, and used to measure the radial profile of the plasma density (n(e)) in Aditya tokamak. The resolution of the density measurement is n(e) = 2 x 10(11) cm(-3). The spatial and time resolutions are 7 cm and 10 mu s, respectively. The chord-averaged measurements from seven channels are Abel inverted to obtain the radial profile of the plasma density. Plasma density measured by the microwave interferometer is well matched with that measured by the Thomson scattering diagnostics.
引用
收藏
页码:1316 / 1321
页数:6
相关论文
共 15 条
[1]   Different Types of Lithium Coating in Tokamak ADITYA [J].
Bhatt, S. B. ;
Kumar, Ajai ;
Das, B. K. ;
Raijada, P. A. ;
Kumar, Manoj ;
Jadeja, K. A. .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2012, 40 (06) :1773-1777
[2]  
BHATT SB, 1989, INDIAN J PURE AP PHY, V27, P710
[3]   Multichannel microwave interferometer for the levitated dipole experiment [J].
Boxer, Alexander C. ;
Garnier, Darren T. ;
Mauel, Michael E. .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2009, 80 (04)
[4]  
Chen F.F., 1965, PLASMA DIAGNOSTIC TE
[5]   Design and implementation of a 150 GHz single-channel millimeter wave interferometer on Joint TEXT tokamak [J].
Feng, X. D. ;
Zhuang, G. ;
Yang, Z. J. ;
Gao, L. ;
Hu, X. W. .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2013, 84 (04)
[6]   PLASMA ELECTRON-DENSITY MEASUREMENTS FROM THE JET 2 MM WAVE INTERFEROMETER [J].
FESSEY, JA ;
GOWERS, CW ;
HUGENHOLTZ, CAJ ;
SLAVIN, K .
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1987, 20 (02) :169-174
[7]  
Heald W. A., 1965, PLASMA DIAGNOSTICS M
[8]  
HUTCHINSON IH, 1987, PRINCIPLES PLASMA DI, pCH3
[9]   Abel inversion of asymmetric plasma density profile at Aditya Tokamak [J].
Joshi, N. Y. ;
Atrey, P. K. ;
Pathak, S. K. .
23RD NATIONAL SYMPOSIUM ON PLASMA SCIENCE AND TECHNOLOGY (PLASMA-2008), 2010, 208
[10]   INSTRUMENTATION FOR MAGNETICALLY CONFINED FUSION PLASMA DIAGNOSTICS [J].
LUHMANN, NC ;
PEEBLES, WA .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1984, 55 (03) :279-331