title: Development of in situ energetic ion injector for magnetically confined plasmas using hydrogen storage electrode.
abstract: To develop a compact ion injector made of hydrogen storage material, we investigate a plasma response for a positively biased hydrogen storage electrode in a small standard heliac device. When the bias voltage of the electrode increases, a positive potential between the electrode and the space potential on the magnetic surface emerges. The emission of hydrogen atom line also increases. To clarify the origin of the increase in emission, we designed an imaging system with sufficient temporal resolution.
authors.affiliation: Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Okamoto
authors.affiliation: Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Oku
authors.affiliation: Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Koike
authors.affiliation: Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.affiliation: Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Ishii
authors.affiliation: Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kitajima