title: Local current density measurement using a Rogowski probe in Tokyo Spherical Tokamak-2.
abstract: A Rogowski probe consisting of a small multi-layer Rogowski coil, five magnetic pick-up coils, and a Langmuir probe was developed to measure the local current density and its direction. It can be moved along the major radius and can be turned around its axis. This probe was used to measure the current density profile near the last closed flux surface of Ohmic plasmas in Tokyo Spherical Tokamak-2. The current density profile was measured successfully with a signal to noise ratio of greater than 20.
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Furui
authors.affiliation: Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8680, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Nagashima
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Takase
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Ejiri
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kakuda
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Sonehara
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Oosako
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Tsujii
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Hiratsuka
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Imamura
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Inada
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Nakamura
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Nakanishi
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Shinya
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Togashi
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Tsuda
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Wakatsuki
authors.affiliation: The University of Tokyo, 5-1-5 Kasshiwanoha, Kashiwa, Chiba 277-8561, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Yamaguchi