title: Radial density profile measurement by using the multichannel microwave interferometer in GAMMA 10.
abstract: Plasma density radial profile measurements are an important study for fusion plasma researches. We reconstructed a multichannel microwave interferometer for radial plasma electron density and density fluctuation measurements with both changing the transmission horn position and using the Teflon lens by only using this system in a single plasma shot. By using this system, we can successfully measure the radial density and density fluctuation spectra in a single plasma shot.
authors.affiliation: Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan. yosikawa@prc.tsukuba.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Yoshikawa
authors.forename: T
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Y
authors.initials: Y
authors.lastname: Shima
authors.forename: S
authors.initials: S
authors.lastname: Negishi
authors.forename: Y
authors.initials: Y
authors.lastname: Miyata
authors.forename: M
authors.initials: M
authors.lastname: Mizuguchi
authors.forename: N
authors.initials: N
authors.lastname: Imai
authors.forename: Y
authors.initials: Y
authors.lastname: Yoneda
authors.forename: H
authors.initials: H
authors.lastname: Hojo
authors.forename: A
authors.initials: A
authors.lastname: Itakura
authors.forename: T
authors.initials: T
authors.lastname: Imai