title: Upgrade of the analyzer design for multipoint measurements by a gold neutral beam probe on the GAMMA 10 tandem mirror.
abstract: The study of the mechanisms of both transport and fluctuations is one of the main issues of fusion plasma researches. Spatial fluctuation structure measurements are important for studying of cross correlation between the two fluctuations. Gold neutral beam probe systems are used in GAMMA 10 tandem mirror plasma device. Currently, the plasma potential and its fluctuations cannot be measured at different radial positions simultaneously. This paper presents the upgrade design of the 45 degrees electrostatic energy analyzer for the simultaneous multipoint measurements of plasma parameters.
authors.affiliation: Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan. miyata@prc.tsukuba.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Miyata
authors.forename: M
authors.initials: M
authors.lastname: Yoshikawa
authors.forename: Y
authors.initials: Y
authors.lastname: Oono
authors.forename: M
authors.initials: M
authors.lastname: Mizuguchi
authors.forename: Y
authors.initials: Y
authors.lastname: Nakashima
authors.forename: S
authors.initials: S
authors.lastname: Goshu
authors.forename: M
authors.initials: M
authors.lastname: Nakada
authors.forename: T
authors.initials: T
authors.lastname: Imai