Differential-phase reflectometry using phased-array antenna system in QUEST

Author

Nagata, K. ; Idei, H. ; Sakaguchi, M. ; Dono, K. ; Wataya, Y. ; Kawasaki, S. ; Zushi, H. ; Hanada, K. ; Nakamura, K. ; Sakamoto, M. ; Hasegawa, M. ; Higashizono, Y. ; Takase, Y. ; Maekawa, T. ; Mitarai, O. ; Kishimoto, Y. ; Nakashima, H. ; Higashijima, A.

Author_Institution

Interdiscipl. Grad. Sch. of Eng. Sci., Kyushu Univ., Kasuga, Japan

fYear

2010

fDate

5-10 Sept. 2010

Firstpage

1

Lastpage

2

Abstract

The differential-phase reflectometry has been developed to measure the density profile, concerning electron Bernstein Wave (EBW) heating and current drive in the QUEST. The Phased Array Antenna (PAA) system was proposed for the reflectometry to improve the ratio of signal to noise. The PAA was confirmed to be effective, as a launching antenna to receive the larger reflected-wave signal.

Keywords

antenna phased arrays; density measurement; microwave reflectometry; plasma Bernstein waves; EBW heating; PAA system; QUEST; density profile measurement; differential phase reflectometry; electron Bernstein wave heating; phased array launching antenna system; reflected wave signal; signal to noise ratio; Antenna measurements; Couplings; Phase measurement; Receiving antennas; Reflectometry; Reflector antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-6655-9

Type

conf

DOI

10.1109/ICIMW.2010.5612434

Filename

5612434