title: High-impedance wire grid method to study spatiotemporal behavior of hot electron clump generated in a plasma.
abstract: High-impedance Wire Grid (HIWG) detector has been developed to study spatiotemporal behavior of a hot electron clump generated in an electron cyclotron resonance (ECR) plasma. By measuring the floating potentials of the wire electrodes, and generating structure matrix made of geometrical means of the floating potentials, the HIWG detector reconstructs the spatial distribution of high-temperature electron clump at an arbitrary instant of time. Time slices of the spike event in floating potential revealed the growth and decay process of a hot spot occurs in an ECR plasma.
authors.affiliation: Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Terasaka
authors.affiliation: National Institute for Fusion Science, 509-5292 Toki, Gifu, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Yoshimura
authors.affiliation: Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kato
authors.affiliation: Department of Physics, Nagoya University, 464-8602 Nagoya, Aichi, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Furuta
authors.affiliation: College of Industrial Technology, Nihon University, 275-8575 Narashino, Chiba, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Aramaki
authors.affiliation: National Institute for Fusion Science, 509-5292 Toki, Gifu, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Morisaki
authors.affiliation: Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka, Japan.
authors.forename: M Y
authors.initials: MY
authors.lastname: Tanaka
mesh_terms: D017097:Electric Impedance; D004583:Electrons; D008962:Models, Theoretical; D058626:Plasma Gases
chemical_list: D058626:Plasma Gases